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Posted to notifications@shardingsphere.apache.org by pa...@apache.org on 2022/11/12 07:53:35 UTC

[shardingsphere] branch master updated: Rename variable from parameters to params (#22101)

This is an automated email from the ASF dual-hosted git repository.

panjuan pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/shardingsphere.git


The following commit(s) were added to refs/heads/master by this push:
     new 9c443b4afaf Rename variable from parameters to params (#22101)
9c443b4afaf is described below

commit 9c443b4afaf378fbb65933c5c8c1b9c9e13d18b4
Author: Liang Zhang <zh...@apache.org>
AuthorDate: Sat Nov 12 15:53:28 2022 +0800

    Rename variable from parameters to params (#22101)
---
 .../service/ZipkinTracingPluginBootService.java    | 10 ++---
 .../binary/execute/MySQLComStmtExecutePacket.java  | 28 +++++++-------
 .../extended/bind/OpenGaussComBatchBindPacket.java | 26 ++++++-------
 .../extended/bind/PostgreSQLComBindPacket.java     | 44 +++++++++++-----------
 .../PostgreSQLTypeUnspecifiedSQLParameterTest.java |  4 +-
 .../condition/impl/EncryptEqualCondition.java      |  6 +--
 .../rewrite/condition/impl/EncryptInCondition.java |  6 +--
 .../condition/impl/EncryptLikeCondition.java       |  6 +--
 .../parameter/EncryptParameterRewriterBuilder.java | 26 ++++++-------
 .../EncryptAssignmentParameterRewriter.java        | 16 ++++----
 ...OnDuplicateKeyUpdateValueParameterRewriter.java | 10 ++---
 .../EncryptInsertValueParameterRewriter.java       | 10 ++---
 .../EncryptPredicateParameterRewriter.java         |  8 ++--
 .../pojo/EncryptPredicateEqualRightValueToken.java | 10 ++---
 .../pojo/EncryptPredicateInRightValueToken.java    | 12 +++---
 .../EncryptParameterRewriterBuilderTest.java       |  3 +-
 .../ShardingParameterRewriterBuilder.java          | 18 ++++-----
 ...ngGeneratedKeyInsertValueParameterRewriter.java |  6 +--
 .../impl/ShardingPaginationParameterRewriter.java  | 18 ++++-----
 ...neratedKeyInsertValueParameterRewriterTest.java |  4 +-
 .../ShardingPaginationParameterRewriterTest.java   | 25 ++++++------
 .../handler/update/MigrateTableUpdater.java        |  5 +--
 .../checker/ShardingRouteCacheableChecker.java     |  2 +-
 .../shardingsphere/infra/binder/QueryContext.java  |  2 +-
 .../segment/insert/values/InsertSelectContext.java |  2 +-
 .../segment/insert/values/InsertValueContext.java  |  8 ++--
 .../insert/values/OnDuplicateUpdateContext.java    | 10 ++---
 .../dialect/OpenGaussSchemaMetaDataLoader.java     |  6 +--
 .../dialect/PostgreSQLSchemaMetaDataLoader.java    |  6 +--
 .../infra/rewrite/context/SQLRewriteContext.java   |  2 +-
 .../rewrite/engine/RouteSQLRewriteEngine.java      | 16 ++++----
 .../builder/impl/StandardParameterBuilder.java     |  4 +-
 .../parameter/rewriter/ParameterRewriter.java      |  4 +-
 .../builder/impl/StandardParameterBuilderTest.java | 16 ++------
 .../core/datasource/ShardingSphereDataSource.java  |  4 +-
 .../jdbc/adapter/PreparedStatementAdapterTest.java |  4 +-
 .../spring/boot/util/PropertyUtil.java             | 10 ++---
 .../pipeline/api/ConsistencyCheckJobPublicAPI.java |  4 +-
 .../data/pipeline/api/MigrationJobPublicAPI.java   |  4 +-
 .../PipelineDataSourceConfigurationFactory.java    |  8 ++--
 ...rdingSpherePipelineDataSourceConfiguration.java |  9 ++---
 .../StandardPipelineDataSourceConfiguration.java   | 12 +++---
 .../listener/PipelineJobProgressListener.java      |  4 +-
 .../DataConsistencyCalculateAlgorithm.java         |  4 +-
 ...SingleTableInventoryDataConsistencyChecker.java |  8 ++--
 ...StreamingDataConsistencyCalculateAlgorithm.java | 18 ++++-----
 ...RC32MatchDataConsistencyCalculateAlgorithm.java | 16 ++++----
 ...DataMatchDataConsistencyCalculateAlgorithm.java | 32 ++++++++--------
 .../pipeline/core/importer/DefaultImporter.java    |  4 +-
 .../core/prepare/PipelineJobPreparerUtils.java     | 12 +++---
 .../datasource/AbstractDataSourcePreparer.java     |  8 ++--
 .../prepare/datasource/DataSourcePreparer.java     |  8 ++--
 .../ConsistencyCheckJobAPIImpl.java                |  8 ++--
 .../ConsistencyCheckJobItemContext.java            |  4 +-
 .../scenario/migration/MigrationJobAPIImpl.java    | 24 ++++++------
 .../migration/MigrationJobItemContext.java         |  4 +-
 .../scenario/migration/MigrationJobPreparer.java   |  7 ++--
 .../YamlDataConsistencyCheckResultSwapper.java     |  6 +--
 ...amlConsistencyCheckJobConfigurationSwapper.java |  6 +--
 .../job/YamlMigrationJobConfigurationSwapper.java  |  6 +--
 .../datasource/MySQLDataSourcePreparer.java        |  8 ++--
 .../datasource/OpenGaussDataSourcePreparer.java    |  8 ++--
 .../datasource/PostgreSQLDataSourcePreparer.java   |  8 ++--
 .../mode/manager/ContextManagerBuilder.java        |  4 +-
 .../mode/metadata/MetaDataContextsFactory.java     | 17 ++++-----
 .../ContextManagerBuilderParameterTest.java        | 12 +++---
 .../fixture/ContextManagerBuilderFixture.java      |  2 +-
 .../cluster/ClusterContextManagerBuilder.java      | 31 ++++++++-------
 .../StandaloneContextManagerBuilder.java           | 22 +++++------
 .../jdbc/statement/JDBCBackendStatement.java       | 12 +++---
 .../proxy/initializer/BootstrapInitializer.java    |  4 +-
 .../PostgreSQLBatchedStatementsExecutor.java       | 32 ++++++++--------
 .../PostgreSQLBatchedStatementsExecutorTest.java   |  2 +-
 .../impl/OpenGaussStatementSQLVisitor.java         |  8 ++--
 .../impl/PostgreSQLStatementSQLVisitor.java        |  8 ++--
 .../limit/ParameterMarkerLimitValueSegment.java    |  4 +-
 .../ParameterMarkerRowNumberValueSegment.java      |  4 +-
 .../dal/OpenGaussResetParameterStatement.java      |  4 +-
 .../dal/PostgreSQLResetParameterStatement.java     |  4 +-
 .../assertion/IntegrationTestCaseAssertion.java    | 14 +++----
 .../test/integration/engine/SingleITCase.java      |  4 +-
 .../framework/param/RunnerParameters.java          |  4 +-
 .../SQLNodeConverterEngineParameterizedTest.java   |  8 ++--
 .../engine/SQLParserParameterizedTest.java         |  4 +-
 .../api/impl/ConsistencyCheckJobAPIImplTest.java   |  6 +--
 .../core/api/impl/MigrationJobAPIImplTest.java     |  3 +-
 ...MatchDataConsistencyCalculateAlgorithmTest.java | 16 ++++----
 .../DataConsistencyCalculateAlgorithmFixture.java  |  2 +-
 .../core/fixture/FixtureDataSourcePreparer.java    |  4 +-
 .../FixtureInventoryIncrementalJobItemContext.java |  2 +-
 .../datasource/AbstractDataSourcePreparerTest.java |  2 +-
 91 files changed, 426 insertions(+), 450 deletions(-)

diff --git a/agent/plugins/tracing/zipkin/src/main/java/org/apache/shardingsphere/agent/plugin/tracing/zipkin/service/ZipkinTracingPluginBootService.java b/agent/plugins/tracing/zipkin/src/main/java/org/apache/shardingsphere/agent/plugin/tracing/zipkin/service/ZipkinTracingPluginBootService.java
index 00ba309900e..42a965353b4 100644
--- a/agent/plugins/tracing/zipkin/src/main/java/org/apache/shardingsphere/agent/plugin/tracing/zipkin/service/ZipkinTracingPluginBootService.java
+++ b/agent/plugins/tracing/zipkin/src/main/java/org/apache/shardingsphere/agent/plugin/tracing/zipkin/service/ZipkinTracingPluginBootService.java
@@ -70,16 +70,16 @@ public final class ZipkinTracingPluginBootService implements PluginBootService {
     
     private Sampler createSampler(final PluginConfiguration pluginConfig) {
         String samplerType = Optional.ofNullable(pluginConfig.getProps().getProperty(KEY_SAMPLER_TYPE)).orElse(DEFAULT_SAMPLER_TYPE);
-        String samplerParameter = Optional.ofNullable(pluginConfig.getProps().getProperty(KEY_SAMPLER_PARAM)).orElse(DEFAULT_SAMPLER_PARAM);
+        String samplerParam = Optional.ofNullable(pluginConfig.getProps().getProperty(KEY_SAMPLER_PARAM)).orElse(DEFAULT_SAMPLER_PARAM);
         switch (samplerType) {
             case "const":
-                return "0".equals(samplerParameter) ? Sampler.NEVER_SAMPLE : Sampler.ALWAYS_SAMPLE;
+                return "0".equals(samplerParam) ? Sampler.NEVER_SAMPLE : Sampler.ALWAYS_SAMPLE;
             case "counting":
-                return Sampler.create(Float.parseFloat(samplerParameter));
+                return Sampler.create(Float.parseFloat(samplerParam));
             case "ratelimiting":
-                return RateLimitingSampler.create(Integer.parseInt(samplerParameter));
+                return RateLimitingSampler.create(Integer.parseInt(samplerParam));
             case "boundary":
-                return BoundarySampler.create(Float.parseFloat(samplerParameter));
+                return BoundarySampler.create(Float.parseFloat(samplerParam));
             default:
                 return Sampler.ALWAYS_SAMPLE;
         }
diff --git a/db-protocol/mysql/src/main/java/org/apache/shardingsphere/db/protocol/mysql/packet/command/query/binary/execute/MySQLComStmtExecutePacket.java b/db-protocol/mysql/src/main/java/org/apache/shardingsphere/db/protocol/mysql/packet/command/query/binary/execute/MySQLComStmtExecutePacket.java
index eed17e8ecca..bb941eed3f9 100644
--- a/db-protocol/mysql/src/main/java/org/apache/shardingsphere/db/protocol/mysql/packet/command/query/binary/execute/MySQLComStmtExecutePacket.java
+++ b/db-protocol/mysql/src/main/java/org/apache/shardingsphere/db/protocol/mysql/packet/command/query/binary/execute/MySQLComStmtExecutePacket.java
@@ -62,19 +62,19 @@ public final class MySQLComStmtExecutePacket extends MySQLCommandPacket {
     @Getter
     private final List<MySQLPreparedStatementParameterType> newParameterTypes;
     
-    public MySQLComStmtExecutePacket(final MySQLPacketPayload payload, final int parameterCount) {
+    public MySQLComStmtExecutePacket(final MySQLPacketPayload payload, final int paramCount) {
         super(MySQLCommandPacketType.COM_STMT_EXECUTE);
         this.payload = payload;
         statementId = payload.readInt4();
         flags = payload.readInt1();
         Preconditions.checkArgument(ITERATION_COUNT == payload.readInt4());
-        if (parameterCount > 0) {
-            nullBitmap = new MySQLNullBitmap(parameterCount, NULL_BITMAP_OFFSET);
+        if (paramCount > 0) {
+            nullBitmap = new MySQLNullBitmap(paramCount, NULL_BITMAP_OFFSET);
             for (int i = 0; i < nullBitmap.getNullBitmap().length; i++) {
                 nullBitmap.getNullBitmap()[i] = payload.readInt1();
             }
             newParametersBoundFlag = MySQLNewParametersBoundFlag.valueOf(payload.readInt1());
-            newParameterTypes = MySQLNewParametersBoundFlag.PARAMETER_TYPE_EXIST == newParametersBoundFlag ? getNewParameterTypes(parameterCount) : Collections.emptyList();
+            newParameterTypes = MySQLNewParametersBoundFlag.PARAMETER_TYPE_EXIST == newParametersBoundFlag ? getNewParameterTypes(paramCount) : Collections.emptyList();
         } else {
             nullBitmap = null;
             newParametersBoundFlag = null;
@@ -82,9 +82,9 @@ public final class MySQLComStmtExecutePacket extends MySQLCommandPacket {
         }
     }
     
-    private List<MySQLPreparedStatementParameterType> getNewParameterTypes(final int parameterCount) {
-        List<MySQLPreparedStatementParameterType> result = new ArrayList<>(parameterCount);
-        for (int parameterIndex = 0; parameterIndex < parameterCount; parameterIndex++) {
+    private List<MySQLPreparedStatementParameterType> getNewParameterTypes(final int paramCount) {
+        List<MySQLPreparedStatementParameterType> result = new ArrayList<>(paramCount);
+        for (int paramIndex = 0; paramIndex < paramCount; paramIndex++) {
             MySQLBinaryColumnType columnType = MySQLBinaryColumnType.valueOf(payload.readInt1());
             int unsignedFlag = payload.readInt1();
             result.add(new MySQLPreparedStatementParameterType(columnType, unsignedFlag));
@@ -95,20 +95,20 @@ public final class MySQLComStmtExecutePacket extends MySQLCommandPacket {
     /**
      * Read parameter values from packet.
      *
-     * @param parameterTypes parameter type of values
+     * @param paramTypes parameter type of values
      * @param longDataIndexes indexes of long data
      * @return parameter values
      * @throws SQLException SQL exception
      */
-    public List<Object> readParameters(final List<MySQLPreparedStatementParameterType> parameterTypes, final Set<Integer> longDataIndexes) throws SQLException {
-        List<Object> result = new ArrayList<>(parameterTypes.size());
-        for (int parameterIndex = 0; parameterIndex < parameterTypes.size(); parameterIndex++) {
-            if (longDataIndexes.contains(parameterIndex)) {
+    public List<Object> readParameters(final List<MySQLPreparedStatementParameterType> paramTypes, final Set<Integer> longDataIndexes) throws SQLException {
+        List<Object> result = new ArrayList<>(paramTypes.size());
+        for (int paramIndex = 0; paramIndex < paramTypes.size(); paramIndex++) {
+            if (longDataIndexes.contains(paramIndex)) {
                 result.add(null);
                 continue;
             }
-            MySQLBinaryProtocolValue binaryProtocolValue = MySQLBinaryProtocolValueFactory.getBinaryProtocolValue(parameterTypes.get(parameterIndex).getColumnType());
-            result.add(nullBitmap.isNullParameter(parameterIndex) ? null : binaryProtocolValue.read(payload));
+            MySQLBinaryProtocolValue binaryProtocolValue = MySQLBinaryProtocolValueFactory.getBinaryProtocolValue(paramTypes.get(paramIndex).getColumnType());
+            result.add(nullBitmap.isNullParameter(paramIndex) ? null : binaryProtocolValue.read(payload));
         }
         return result;
     }
diff --git a/db-protocol/opengauss/src/main/java/org/apache/shardingsphere/db/protocol/opengauss/packet/command/query/extended/bind/OpenGaussComBatchBindPacket.java b/db-protocol/opengauss/src/main/java/org/apache/shardingsphere/db/protocol/opengauss/packet/command/query/extended/bind/OpenGaussComBatchBindPacket.java
index 6aafaba54f3..5d71be310b9 100644
--- a/db-protocol/opengauss/src/main/java/org/apache/shardingsphere/db/protocol/opengauss/packet/command/query/extended/bind/OpenGaussComBatchBindPacket.java
+++ b/db-protocol/opengauss/src/main/java/org/apache/shardingsphere/db/protocol/opengauss/packet/command/query/extended/bind/OpenGaussComBatchBindPacket.java
@@ -90,27 +90,27 @@ public final class OpenGaussComBatchBindPacket extends OpenGaussCommandPacket {
     
     private List<Object> readOneGroupOfParameters(final List<PostgreSQLColumnType> parameterTypes) {
         List<Object> result = new ArrayList<>(eachGroupParametersCount);
-        for (int parameterIndex = 0; parameterIndex < eachGroupParametersCount; parameterIndex++) {
-            int parameterValueLength = payload.readInt4();
-            if (-1 == parameterValueLength) {
+        for (int paramIndex = 0; paramIndex < eachGroupParametersCount; paramIndex++) {
+            int paramValueLength = payload.readInt4();
+            if (-1 == paramValueLength) {
                 result.add(null);
                 continue;
             }
-            Object parameterValue = isTextParameterValue(parameterFormats, parameterIndex)
-                    ? getTextParameters(payload, parameterValueLength, parameterTypes.get(parameterIndex))
-                    : getBinaryParameters(payload, parameterValueLength, parameterTypes.get(parameterIndex));
+            Object parameterValue = isTextParameterValue(parameterFormats, paramIndex)
+                    ? getTextParameters(payload, paramValueLength, parameterTypes.get(paramIndex))
+                    : getBinaryParameters(payload, paramValueLength, parameterTypes.get(paramIndex));
             result.add(parameterValue);
         }
         return result;
     }
     
-    private boolean isTextParameterValue(final List<Integer> parameterFormats, final int parameterIndex) {
-        return parameterFormats.isEmpty() || 0 == parameterFormats.get(parameterIndex % parameterFormats.size());
+    private boolean isTextParameterValue(final List<Integer> paramFormats, final int paramIndex) {
+        return paramFormats.isEmpty() || 0 == paramFormats.get(paramIndex % paramFormats.size());
     }
     
-    private Object getTextParameters(final PostgreSQLPacketPayload payload, final int parameterValueLength, final PostgreSQLColumnType parameterType) {
-        String value = payload.getByteBuf().readCharSequence(parameterValueLength, payload.getCharset()).toString();
-        return getTextParameters(value, parameterType);
+    private Object getTextParameters(final PostgreSQLPacketPayload payload, final int paramValueLength, final PostgreSQLColumnType paramType) {
+        String value = payload.getByteBuf().readCharSequence(paramValueLength, payload.getCharset()).toString();
+        return getTextParameters(value, paramType);
     }
     
     private Object getTextParameters(final String textValue, final PostgreSQLColumnType columnType) {
@@ -148,9 +148,9 @@ public final class OpenGaussComBatchBindPacket extends OpenGaussCommandPacket {
         }
     }
     
-    private Object getBinaryParameters(final PostgreSQLPacketPayload payload, final int parameterValueLength, final PostgreSQLColumnType columnType) {
+    private Object getBinaryParameters(final PostgreSQLPacketPayload payload, final int paramValueLength, final PostgreSQLColumnType columnType) {
         PostgreSQLBinaryProtocolValue binaryProtocolValue = PostgreSQLBinaryProtocolValueFactory.getBinaryProtocolValue(columnType);
-        return binaryProtocolValue.read(payload, parameterValueLength);
+        return binaryProtocolValue.read(payload, paramValueLength);
     }
     
     @Override
diff --git a/db-protocol/postgresql/src/main/java/org/apache/shardingsphere/db/protocol/postgresql/packet/command/query/extended/bind/PostgreSQLComBindPacket.java b/db-protocol/postgresql/src/main/java/org/apache/shardingsphere/db/protocol/postgresql/packet/command/query/extended/bind/PostgreSQLComBindPacket.java
index e5cbb2d7a7a..1b8f0167997 100644
--- a/db-protocol/postgresql/src/main/java/org/apache/shardingsphere/db/protocol/postgresql/packet/command/query/extended/bind/PostgreSQLComBindPacket.java
+++ b/db-protocol/postgresql/src/main/java/org/apache/shardingsphere/db/protocol/postgresql/packet/command/query/extended/bind/PostgreSQLComBindPacket.java
@@ -59,48 +59,48 @@ public final class PostgreSQLComBindPacket extends PostgreSQLCommandPacket {
     /**
      * Read parameters from Bind message.
      *
-     * @param parameterTypes parameter types
+     * @param paramTypes parameter types
      * @return values of parameter
      */
-    public List<Object> readParameters(final List<PostgreSQLColumnType> parameterTypes) {
+    public List<Object> readParameters(final List<PostgreSQLColumnType> paramTypes) {
         int parameterFormatCount = payload.readInt2();
-        List<Integer> parameterFormats = new ArrayList<>(parameterFormatCount);
+        List<Integer> paramFormats = new ArrayList<>(parameterFormatCount);
         for (int i = 0; i < parameterFormatCount; i++) {
-            parameterFormats.add(payload.readInt2());
+            paramFormats.add(payload.readInt2());
         }
         int parameterCount = payload.readInt2();
         List<Object> result = new ArrayList<>(parameterCount);
-        for (int parameterIndex = 0; parameterIndex < parameterCount; parameterIndex++) {
+        for (int paramIndex = 0; paramIndex < parameterCount; paramIndex++) {
             int parameterValueLength = payload.readInt4();
             if (-1 == parameterValueLength) {
                 result.add(null);
                 continue;
             }
-            Object parameterValue = isTextParameterValue(parameterFormats, parameterIndex)
-                    ? getTextParameters(payload, parameterValueLength, parameterTypes.get(parameterIndex))
-                    : getBinaryParameters(payload, parameterValueLength, parameterTypes.get(parameterIndex));
-            result.add(parameterValue);
+            Object paramValue = isTextParameterValue(paramFormats, paramIndex)
+                    ? getTextParameters(payload, parameterValueLength, paramTypes.get(paramIndex))
+                    : getBinaryParameters(payload, parameterValueLength, paramTypes.get(paramIndex));
+            result.add(paramValue);
         }
         return result;
     }
     
-    private boolean isTextParameterValue(final List<Integer> parameterFormats, final int parameterIndex) {
-        if (parameterFormats.isEmpty()) {
+    private boolean isTextParameterValue(final List<Integer> paramFormats, final int paramIndex) {
+        if (paramFormats.isEmpty()) {
             return true;
         }
-        if (1 == parameterFormats.size()) {
-            return 0 == parameterFormats.get(0);
+        if (1 == paramFormats.size()) {
+            return 0 == paramFormats.get(0);
         }
-        return 0 == parameterFormats.get(parameterIndex);
+        return 0 == paramFormats.get(paramIndex);
     }
     
-    private Object getTextParameters(final PostgreSQLPacketPayload payload, final int parameterValueLength, final PostgreSQLColumnType parameterType) {
-        String value = payload.getByteBuf().readCharSequence(parameterValueLength, payload.getCharset()).toString();
-        return getTextParameters(value, parameterType);
+    private Object getTextParameters(final PostgreSQLPacketPayload payload, final int paramValueLength, final PostgreSQLColumnType paramType) {
+        String value = payload.getByteBuf().readCharSequence(paramValueLength, payload.getCharset()).toString();
+        return getTextParameters(value, paramType);
     }
     
-    private Object getTextParameters(final String textValue, final PostgreSQLColumnType parameterType) {
-        switch (parameterType) {
+    private Object getTextParameters(final String textValue, final PostgreSQLColumnType paramType) {
+        switch (paramType) {
             case POSTGRESQL_TYPE_UNSPECIFIED:
                 return new PostgreSQLTypeUnspecifiedSQLParameter(textValue);
             case POSTGRESQL_TYPE_BOOL:
@@ -136,9 +136,9 @@ public final class PostgreSQLComBindPacket extends PostgreSQLCommandPacket {
         }
     }
     
-    private Object getBinaryParameters(final PostgreSQLPacketPayload payload, final int parameterValueLength, final PostgreSQLColumnType parameterType) {
-        PostgreSQLBinaryProtocolValue binaryProtocolValue = PostgreSQLBinaryProtocolValueFactory.getBinaryProtocolValue(parameterType);
-        return binaryProtocolValue.read(payload, parameterValueLength);
+    private Object getBinaryParameters(final PostgreSQLPacketPayload payload, final int paramValueLength, final PostgreSQLColumnType paramType) {
+        PostgreSQLBinaryProtocolValue binaryProtocolValue = PostgreSQLBinaryProtocolValueFactory.getBinaryProtocolValue(paramType);
+        return binaryProtocolValue.read(payload, paramValueLength);
     }
     
     /**
diff --git a/db-protocol/postgresql/src/test/java/org/apache/shardingsphere/db/protocol/postgresql/packet/command/query/extended/bind/PostgreSQLTypeUnspecifiedSQLParameterTest.java b/db-protocol/postgresql/src/test/java/org/apache/shardingsphere/db/protocol/postgresql/packet/command/query/extended/bind/PostgreSQLTypeUnspecifiedSQLParameterTest.java
index 1925d838d96..51f24687722 100644
--- a/db-protocol/postgresql/src/test/java/org/apache/shardingsphere/db/protocol/postgresql/packet/command/query/extended/bind/PostgreSQLTypeUnspecifiedSQLParameterTest.java
+++ b/db-protocol/postgresql/src/test/java/org/apache/shardingsphere/db/protocol/postgresql/packet/command/query/extended/bind/PostgreSQLTypeUnspecifiedSQLParameterTest.java
@@ -26,8 +26,6 @@ public final class PostgreSQLTypeUnspecifiedSQLParameterTest {
     
     @Test
     public void assertToString() {
-        String timestampStr = "2020-08-23 15:57:03+08";
-        PostgreSQLTypeUnspecifiedSQLParameter parameter = new PostgreSQLTypeUnspecifiedSQLParameter(timestampStr);
-        assertThat(parameter.toString(), is(timestampStr));
+        assertThat(new PostgreSQLTypeUnspecifiedSQLParameter("2020-08-23 15:57:03+08").toString(), is("2020-08-23 15:57:03+08"));
     }
 }
diff --git a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/condition/impl/EncryptEqualCondition.java b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/condition/impl/EncryptEqualCondition.java
index b7fbf6af63b..11c1a535aa7 100644
--- a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/condition/impl/EncryptEqualCondition.java
+++ b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/condition/impl/EncryptEqualCondition.java
@@ -76,11 +76,11 @@ public final class EncryptEqualCondition implements EncryptCondition {
     public List<Object> getValues(final List<Object> params) {
         List<Object> result = new ArrayList<>(positionValueMap.values());
         for (Entry<Integer, Integer> entry : positionIndexMap.entrySet()) {
-            Object parameter = params.get(entry.getValue());
+            Object param = params.get(entry.getValue());
             if (entry.getKey() < result.size()) {
-                result.add(entry.getKey(), parameter);
+                result.add(entry.getKey(), param);
             } else {
-                result.add(parameter);
+                result.add(param);
             }
         }
         return result;
diff --git a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/condition/impl/EncryptInCondition.java b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/condition/impl/EncryptInCondition.java
index 43323eb987d..ac0c0afe529 100644
--- a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/condition/impl/EncryptInCondition.java
+++ b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/condition/impl/EncryptInCondition.java
@@ -75,11 +75,11 @@ public final class EncryptInCondition implements EncryptCondition {
     public List<Object> getValues(final List<Object> params) {
         List<Object> result = new ArrayList<>(positionValueMap.values());
         for (Entry<Integer, Integer> entry : positionIndexMap.entrySet()) {
-            Object parameter = params.get(entry.getValue());
+            Object param = params.get(entry.getValue());
             if (entry.getKey() < result.size()) {
-                result.add(entry.getKey(), parameter);
+                result.add(entry.getKey(), param);
             } else {
-                result.add(parameter);
+                result.add(param);
             }
         }
         return result;
diff --git a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/condition/impl/EncryptLikeCondition.java b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/condition/impl/EncryptLikeCondition.java
index b1d5ddc9370..93d3bbd0272 100644
--- a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/condition/impl/EncryptLikeCondition.java
+++ b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/condition/impl/EncryptLikeCondition.java
@@ -77,11 +77,11 @@ public final class EncryptLikeCondition implements EncryptCondition {
     public List<Object> getValues(final List<Object> params) {
         List<Object> result = new ArrayList<>(positionValueMap.values());
         for (Entry<Integer, Integer> entry : positionIndexMap.entrySet()) {
-            Object parameter = params.get(entry.getValue());
+            Object param = params.get(entry.getValue());
             if (entry.getKey() < result.size()) {
-                result.add(entry.getKey(), parameter);
+                result.add(entry.getKey(), param);
             } else {
-                result.add(parameter);
+                result.add(param);
             }
         }
         return result;
diff --git a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/EncryptParameterRewriterBuilder.java b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/EncryptParameterRewriterBuilder.java
index d058d555b8b..48c81aa6943 100644
--- a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/EncryptParameterRewriterBuilder.java
+++ b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/EncryptParameterRewriterBuilder.java
@@ -64,26 +64,26 @@ public final class EncryptParameterRewriterBuilder implements ParameterRewriterB
         return result;
     }
     
-    private void addParameterRewriter(final Collection<ParameterRewriter> parameterRewriters, final ParameterRewriter<?> toBeAddedParameterRewriter) {
-        if (toBeAddedParameterRewriter.isNeedRewrite(sqlStatementContext)) {
-            setUpParameterRewriter(toBeAddedParameterRewriter);
-            parameterRewriters.add(toBeAddedParameterRewriter);
+    private void addParameterRewriter(final Collection<ParameterRewriter> paramRewriters, final ParameterRewriter<?> toBeAddedParamRewriter) {
+        if (toBeAddedParamRewriter.isNeedRewrite(sqlStatementContext)) {
+            setUpParameterRewriter(toBeAddedParamRewriter);
+            paramRewriters.add(toBeAddedParamRewriter);
         }
     }
     
     @SuppressWarnings("rawtypes")
-    private void setUpParameterRewriter(final ParameterRewriter toBeAddedParameterRewriter) {
-        if (toBeAddedParameterRewriter instanceof SchemaMetaDataAware) {
-            ((SchemaMetaDataAware) toBeAddedParameterRewriter).setSchemas(schemas);
+    private void setUpParameterRewriter(final ParameterRewriter toBeAddedParamRewriter) {
+        if (toBeAddedParamRewriter instanceof SchemaMetaDataAware) {
+            ((SchemaMetaDataAware) toBeAddedParamRewriter).setSchemas(schemas);
         }
-        if (toBeAddedParameterRewriter instanceof EncryptRuleAware) {
-            ((EncryptRuleAware) toBeAddedParameterRewriter).setEncryptRule(encryptRule);
+        if (toBeAddedParamRewriter instanceof EncryptRuleAware) {
+            ((EncryptRuleAware) toBeAddedParamRewriter).setEncryptRule(encryptRule);
         }
-        if (toBeAddedParameterRewriter instanceof EncryptConditionsAware) {
-            ((EncryptConditionsAware) toBeAddedParameterRewriter).setEncryptConditions(encryptConditions);
+        if (toBeAddedParamRewriter instanceof EncryptConditionsAware) {
+            ((EncryptConditionsAware) toBeAddedParamRewriter).setEncryptConditions(encryptConditions);
         }
-        if (toBeAddedParameterRewriter instanceof DatabaseNameAware) {
-            ((DatabaseNameAware) toBeAddedParameterRewriter).setDatabaseName(databaseName);
+        if (toBeAddedParamRewriter instanceof DatabaseNameAware) {
+            ((DatabaseNameAware) toBeAddedParamRewriter).setDatabaseName(databaseName);
         }
     }
 }
diff --git a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/rewriter/EncryptAssignmentParameterRewriter.java b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/rewriter/EncryptAssignmentParameterRewriter.java
index ae4b7b7e4a9..97da9e53458 100644
--- a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/rewriter/EncryptAssignmentParameterRewriter.java
+++ b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/rewriter/EncryptAssignmentParameterRewriter.java
@@ -67,15 +67,15 @@ public final class EncryptAssignmentParameterRewriter implements ParameterRewrit
     }
     
     @Override
-    public void rewrite(final ParameterBuilder parameterBuilder, final SQLStatementContext<?> sqlStatementContext, final List<Object> params) {
+    public void rewrite(final ParameterBuilder paramBuilder, final SQLStatementContext<?> sqlStatementContext, final List<Object> params) {
         String tableName = ((TableAvailable) sqlStatementContext).getAllTables().iterator().next().getTableName().getIdentifier().getValue();
         String schemaName = sqlStatementContext.getTablesContext().getSchemaName().orElseGet(() -> DatabaseTypeEngine.getDefaultSchemaName(sqlStatementContext.getDatabaseType(), databaseName));
         for (AssignmentSegment each : getSetAssignmentSegment(sqlStatementContext.getSqlStatement()).getAssignments()) {
             if (each.getValue() instanceof ParameterMarkerExpressionSegment && encryptRule.findEncryptor(tableName, each.getColumns().get(0).getIdentifier().getValue()).isPresent()) {
-                StandardParameterBuilder standardParameterBuilder = parameterBuilder instanceof StandardParameterBuilder
-                        ? (StandardParameterBuilder) parameterBuilder
-                        : ((GroupedParameterBuilder) parameterBuilder).getParameterBuilders().get(0);
-                encryptParameters(standardParameterBuilder, schemaName, tableName, each, params);
+                StandardParameterBuilder standardParamBuilder = paramBuilder instanceof StandardParameterBuilder
+                        ? (StandardParameterBuilder) paramBuilder
+                        : ((GroupedParameterBuilder) paramBuilder).getParameterBuilders().get(0);
+                encryptParameters(standardParamBuilder, schemaName, tableName, each, params);
             }
         }
     }
@@ -89,13 +89,13 @@ public final class EncryptAssignmentParameterRewriter implements ParameterRewrit
         return ((UpdateStatement) sqlStatement).getSetAssignment();
     }
     
-    private void encryptParameters(final StandardParameterBuilder parameterBuilder, final String schemaName,
+    private void encryptParameters(final StandardParameterBuilder paramBuilder, final String schemaName,
                                    final String tableName, final AssignmentSegment assignmentSegment, final List<Object> params) {
         String columnName = assignmentSegment.getColumns().get(0).getIdentifier().getValue();
         int parameterMarkerIndex = ((ParameterMarkerExpressionSegment) assignmentSegment.getValue()).getParameterMarkerIndex();
         Object originalValue = params.get(parameterMarkerIndex);
         Object cipherValue = encryptRule.getEncryptValues(databaseName, schemaName, tableName, columnName, Collections.singletonList(originalValue)).iterator().next();
-        parameterBuilder.addReplacedParameters(parameterMarkerIndex, cipherValue);
+        paramBuilder.addReplacedParameters(parameterMarkerIndex, cipherValue);
         Collection<Object> addedParams = new LinkedList<>();
         if (encryptRule.findAssistedQueryColumn(tableName, columnName).isPresent()) {
             Object assistedQueryValue = encryptRule.getEncryptAssistedQueryValues(databaseName, schemaName, tableName, columnName, Collections.singletonList(originalValue)).iterator().next();
@@ -109,7 +109,7 @@ public final class EncryptAssignmentParameterRewriter implements ParameterRewrit
             addedParams.add(originalValue);
         }
         if (!addedParams.isEmpty()) {
-            parameterBuilder.addAddedParameters(parameterMarkerIndex, addedParams);
+            paramBuilder.addAddedParameters(parameterMarkerIndex, addedParams);
         }
     }
 }
diff --git a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/rewriter/EncryptInsertOnDuplicateKeyUpdateValueParameterRewriter.java b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/rewriter/EncryptInsertOnDuplicateKeyUpdateValueParameterRewriter.java
index f19716aff28..2f745e81e96 100644
--- a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/rewriter/EncryptInsertOnDuplicateKeyUpdateValueParameterRewriter.java
+++ b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/rewriter/EncryptInsertOnDuplicateKeyUpdateValueParameterRewriter.java
@@ -60,7 +60,7 @@ public final class EncryptInsertOnDuplicateKeyUpdateValueParameterRewriter imple
     @Override
     public void rewrite(final ParameterBuilder paramBuilder, final InsertStatementContext insertStatementContext, final List<Object> params) {
         String tableName = insertStatementContext.getSqlStatement().getTable().getTableName().getIdentifier().getValue();
-        GroupedParameterBuilder groupedParameterBuilder = (GroupedParameterBuilder) paramBuilder;
+        GroupedParameterBuilder groupedParamBuilder = (GroupedParameterBuilder) paramBuilder;
         OnDuplicateUpdateContext onDuplicateKeyUpdateValueContext = insertStatementContext.getOnDuplicateKeyUpdateValueContext();
         String schemaName = insertStatementContext.getTablesContext().getSchemaName().orElseGet(() -> DatabaseTypeEngine.getDefaultSchemaName(insertStatementContext.getDatabaseType(), databaseName));
         for (int index = 0; index < onDuplicateKeyUpdateValueContext.getValueExpressions().size(); index++) {
@@ -74,7 +74,7 @@ public final class EncryptInsertOnDuplicateKeyUpdateValueParameterRewriter imple
                     return;
                 }
                 Object cipherColumnValue = encryptor.get().encrypt(plainColumnValue, encryptContext);
-                groupedParameterBuilder.getGenericParameterBuilder().addReplacedParameters(columnIndex, cipherColumnValue);
+                groupedParamBuilder.getGenericParameterBuilder().addReplacedParameters(columnIndex, cipherColumnValue);
                 Collection<Object> addedParams = new LinkedList<>();
                 Optional<EncryptAlgorithm> assistedQueryEncryptor = encryptRule.findAssistedQueryEncryptor(tableName, encryptLogicColumnName);
                 if (assistedQueryEncryptor.isPresent()) {
@@ -92,10 +92,10 @@ public final class EncryptInsertOnDuplicateKeyUpdateValueParameterRewriter imple
                     addedParams.add(plainColumnValue);
                 }
                 if (!addedParams.isEmpty()) {
-                    if (!groupedParameterBuilder.getGenericParameterBuilder().getAddedIndexAndParameters().containsKey(columnIndex)) {
-                        groupedParameterBuilder.getGenericParameterBuilder().getAddedIndexAndParameters().put(columnIndex, new LinkedList<>());
+                    if (!groupedParamBuilder.getGenericParameterBuilder().getAddedIndexAndParameters().containsKey(columnIndex)) {
+                        groupedParamBuilder.getGenericParameterBuilder().getAddedIndexAndParameters().put(columnIndex, new LinkedList<>());
                     }
-                    groupedParameterBuilder.getGenericParameterBuilder().getAddedIndexAndParameters().get(columnIndex).addAll(addedParams);
+                    groupedParamBuilder.getGenericParameterBuilder().getAddedIndexAndParameters().get(columnIndex).addAll(addedParams);
                 }
             });
         }
diff --git a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/rewriter/EncryptInsertValueParameterRewriter.java b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/rewriter/EncryptInsertValueParameterRewriter.java
index 0fa26ec69b2..62fc63b001b 100644
--- a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/rewriter/EncryptInsertValueParameterRewriter.java
+++ b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/rewriter/EncryptInsertValueParameterRewriter.java
@@ -60,7 +60,7 @@ public final class EncryptInsertValueParameterRewriter implements ParameterRewri
     }
     
     @Override
-    public void rewrite(final ParameterBuilder parameterBuilder, final InsertStatementContext insertStatementContext, final List<Object> params) {
+    public void rewrite(final ParameterBuilder paramBuilder, final InsertStatementContext insertStatementContext, final List<Object> params) {
         String tableName = insertStatementContext.getSqlStatement().getTable().getTableName().getIdentifier().getValue();
         Iterator<String> descendingColumnNames = insertStatementContext.getDescendingColumnNames();
         String schemaName = insertStatementContext.getTablesContext().getSchemaName().orElseGet(() -> DatabaseTypeEngine.getDefaultSchemaName(insertStatementContext.getDatabaseType(), databaseName));
@@ -68,7 +68,7 @@ public final class EncryptInsertValueParameterRewriter implements ParameterRewri
             String columnName = descendingColumnNames.next();
             EncryptContext encryptContext = EncryptContextBuilder.build(databaseName, schemaName, tableName, columnName);
             encryptRule.findEncryptor(tableName, columnName).ifPresent(
-                    optional -> encryptInsertValues((GroupedParameterBuilder) parameterBuilder, insertStatementContext, optional,
+                    optional -> encryptInsertValues((GroupedParameterBuilder) paramBuilder, insertStatementContext, optional,
                             encryptRule.findAssistedQueryEncryptor(tableName, columnName).orElse(null),
                             encryptRule.findFuzzyQueryEncryptor(tableName, columnName).orElse(null), encryptContext));
         }
@@ -80,14 +80,14 @@ public final class EncryptInsertValueParameterRewriter implements ParameterRewri
         int columnIndex = getColumnIndex(paramBuilder, insertStatementContext, encryptContext.getColumnName());
         int count = 0;
         for (List<Object> each : insertStatementContext.getGroupedParameters()) {
-            int parameterIndex = insertStatementContext.getInsertValueContexts().get(count).getParameterIndex(columnIndex);
+            int paramIndex = insertStatementContext.getInsertValueContexts().get(count).getParameterIndex(columnIndex);
             if (!each.isEmpty()) {
-                StandardParameterBuilder standardParameterBuilder = paramBuilder.getParameterBuilders().get(count);
+                StandardParameterBuilder standardParamBuilder = paramBuilder.getParameterBuilders().get(count);
                 ExpressionSegment expressionSegment = insertStatementContext.getInsertValueContexts().get(count).getValueExpressions().get(columnIndex);
                 if (expressionSegment instanceof ParameterMarkerExpressionSegment) {
                     Object literalValue = insertStatementContext.getInsertValueContexts().get(count).getLiteralValue(columnIndex)
                             .orElse(null);
-                    encryptInsertValue(encryptAlgorithm, assistEncryptAlgorithm, fuzzyEncryptAlgorithm, parameterIndex, literalValue, standardParameterBuilder, encryptContext);
+                    encryptInsertValue(encryptAlgorithm, assistEncryptAlgorithm, fuzzyEncryptAlgorithm, paramIndex, literalValue, standardParamBuilder, encryptContext);
                 }
             }
             count++;
diff --git a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/rewriter/EncryptPredicateParameterRewriter.java b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/rewriter/EncryptPredicateParameterRewriter.java
index 0396f02f64e..0ec300c3b7c 100644
--- a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/rewriter/EncryptPredicateParameterRewriter.java
+++ b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/parameter/rewriter/EncryptPredicateParameterRewriter.java
@@ -54,12 +54,12 @@ public final class EncryptPredicateParameterRewriter implements ParameterRewrite
     }
     
     @Override
-    public void rewrite(final ParameterBuilder parameterBuilder, final SQLStatementContext<?> sqlStatementContext, final List<Object> params) {
+    public void rewrite(final ParameterBuilder paramBuilder, final SQLStatementContext<?> sqlStatementContext, final List<Object> params) {
         String schemaName = sqlStatementContext.getTablesContext().getSchemaName().orElseGet(() -> DatabaseTypeEngine.getDefaultSchemaName(sqlStatementContext.getDatabaseType(), databaseName));
         for (EncryptCondition each : encryptConditions) {
             boolean queryWithCipherColumn = encryptRule.isQueryWithCipherColumn(each.getTableName(), each.getColumnName());
             if (queryWithCipherColumn) {
-                encryptParameters(parameterBuilder, each.getPositionIndexMap(), getEncryptedValues(schemaName, each, each.getValues(params)));
+                encryptParameters(paramBuilder, each.getPositionIndexMap(), getEncryptedValues(schemaName, each, each.getValues(params)));
             }
         }
     }
@@ -76,10 +76,10 @@ public final class EncryptPredicateParameterRewriter implements ParameterRewrite
                 : encryptRule.getEncryptValues(databaseName, schemaName, tableName, columnName, originalValues);
     }
     
-    private void encryptParameters(final ParameterBuilder parameterBuilder, final Map<Integer, Integer> positionIndexes, final List<Object> encryptValues) {
+    private void encryptParameters(final ParameterBuilder paramBuilder, final Map<Integer, Integer> positionIndexes, final List<Object> encryptValues) {
         if (!positionIndexes.isEmpty()) {
             for (Entry<Integer, Integer> entry : positionIndexes.entrySet()) {
-                ((StandardParameterBuilder) parameterBuilder).addReplacedParameters(entry.getValue(), encryptValues.get(entry.getKey()));
+                ((StandardParameterBuilder) paramBuilder).addReplacedParameters(entry.getValue(), encryptValues.get(entry.getKey()));
             }
         }
     }
diff --git a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/token/pojo/EncryptPredicateEqualRightValueToken.java b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/token/pojo/EncryptPredicateEqualRightValueToken.java
index a0e40a0d39b..800785e7c83 100644
--- a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/token/pojo/EncryptPredicateEqualRightValueToken.java
+++ b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/token/pojo/EncryptPredicateEqualRightValueToken.java
@@ -28,7 +28,7 @@ import java.util.Map;
 /**
  * Predicate equal right value token for encrypt.
  */
-@EqualsAndHashCode
+@EqualsAndHashCode(callSuper = true)
 public final class EncryptPredicateEqualRightValueToken extends SQLToken implements Substitutable {
     
     @Getter
@@ -36,18 +36,18 @@ public final class EncryptPredicateEqualRightValueToken extends SQLToken impleme
     
     private final Map<Integer, Object> indexValues;
     
-    private final Collection<Integer> parameterMarkerIndexes;
+    private final Collection<Integer> paramMarkerIndexes;
     
-    public EncryptPredicateEqualRightValueToken(final int startIndex, final int stopIndex, final Map<Integer, Object> indexValues, final Collection<Integer> parameterMarkerIndexes) {
+    public EncryptPredicateEqualRightValueToken(final int startIndex, final int stopIndex, final Map<Integer, Object> indexValues, final Collection<Integer> paramMarkerIndexes) {
         super(startIndex);
         this.stopIndex = stopIndex;
         this.indexValues = indexValues;
-        this.parameterMarkerIndexes = parameterMarkerIndexes;
+        this.paramMarkerIndexes = paramMarkerIndexes;
     }
     
     @Override
     public String toString() {
-        if (parameterMarkerIndexes.isEmpty()) {
+        if (paramMarkerIndexes.isEmpty()) {
             return indexValues.get(0) instanceof String ? "'" + indexValues.get(0) + "'" : indexValues.get(0).toString();
         }
         return "?";
diff --git a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/token/pojo/EncryptPredicateInRightValueToken.java b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/token/pojo/EncryptPredicateInRightValueToken.java
index cadedad8d3a..42249860f63 100644
--- a/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/token/pojo/EncryptPredicateInRightValueToken.java
+++ b/features/encrypt/core/src/main/java/org/apache/shardingsphere/encrypt/rewrite/token/pojo/EncryptPredicateInRightValueToken.java
@@ -28,7 +28,7 @@ import java.util.Map;
 /**
  * Predicate in right value token for encrypt.
  */
-@EqualsAndHashCode
+@EqualsAndHashCode(callSuper = true)
 public final class EncryptPredicateInRightValueToken extends SQLToken implements Substitutable {
     
     @Getter
@@ -36,21 +36,21 @@ public final class EncryptPredicateInRightValueToken extends SQLToken implements
     
     private final Map<Integer, Object> indexValues;
     
-    private final Collection<Integer> parameterMarkerIndexes;
+    private final Collection<Integer> paramMarkerIndexes;
     
-    public EncryptPredicateInRightValueToken(final int startIndex, final int stopIndex, final Map<Integer, Object> indexValues, final Collection<Integer> parameterMarkerIndexes) {
+    public EncryptPredicateInRightValueToken(final int startIndex, final int stopIndex, final Map<Integer, Object> indexValues, final Collection<Integer> paramMarkerIndexes) {
         super(startIndex);
         this.stopIndex = stopIndex;
         this.indexValues = indexValues;
-        this.parameterMarkerIndexes = parameterMarkerIndexes;
+        this.paramMarkerIndexes = paramMarkerIndexes;
     }
     
     @Override
     public String toString() {
         StringBuilder result = new StringBuilder();
         result.append("(");
-        for (int i = 0; i < indexValues.size() + parameterMarkerIndexes.size(); i++) {
-            if (parameterMarkerIndexes.contains(i)) {
+        for (int i = 0; i < indexValues.size() + paramMarkerIndexes.size(); i++) {
+            if (paramMarkerIndexes.contains(i)) {
                 result.append("?");
             } else {
                 if (indexValues.get(i) instanceof String) {
diff --git a/features/encrypt/core/src/test/java/org/apache/shardingsphere/encrypt/rewrite/parameter/EncryptParameterRewriterBuilderTest.java b/features/encrypt/core/src/test/java/org/apache/shardingsphere/encrypt/rewrite/parameter/EncryptParameterRewriterBuilderTest.java
index 58324bd2bfb..fb72a998004 100644
--- a/features/encrypt/core/src/test/java/org/apache/shardingsphere/encrypt/rewrite/parameter/EncryptParameterRewriterBuilderTest.java
+++ b/features/encrypt/core/src/test/java/org/apache/shardingsphere/encrypt/rewrite/parameter/EncryptParameterRewriterBuilderTest.java
@@ -50,8 +50,7 @@ public final class EncryptParameterRewriterBuilderTest {
         Collection<ParameterRewriter> actual = new EncryptParameterRewriterBuilder(
                 encryptRule, DefaultDatabase.LOGIC_NAME, Collections.singletonMap("test", mock(ShardingSphereSchema.class)), sqlStatementContext, Collections.emptyList()).getParameterRewriters();
         assertThat(actual.size(), is(1));
-        ParameterRewriter parameterRewriter = actual.iterator().next();
-        assertThat(parameterRewriter, instanceOf(EncryptPredicateParameterRewriter.class));
+        assertThat(actual.iterator().next(), instanceOf(EncryptPredicateParameterRewriter.class));
     }
     
     @Test
diff --git a/features/sharding/core/src/main/java/org/apache/shardingsphere/sharding/rewrite/parameter/ShardingParameterRewriterBuilder.java b/features/sharding/core/src/main/java/org/apache/shardingsphere/sharding/rewrite/parameter/ShardingParameterRewriterBuilder.java
index 80e4883c6e2..c71d9027e99 100644
--- a/features/sharding/core/src/main/java/org/apache/shardingsphere/sharding/rewrite/parameter/ShardingParameterRewriterBuilder.java
+++ b/features/sharding/core/src/main/java/org/apache/shardingsphere/sharding/rewrite/parameter/ShardingParameterRewriterBuilder.java
@@ -58,18 +58,18 @@ public final class ShardingParameterRewriterBuilder implements ParameterRewriter
     }
     
     @SuppressWarnings("rawtypes")
-    private void addParameterRewriter(final Collection<ParameterRewriter> parameterRewriters, final ParameterRewriter toBeAddedParameterRewriter) {
-        if (toBeAddedParameterRewriter instanceof SchemaMetaDataAware) {
-            ((SchemaMetaDataAware) toBeAddedParameterRewriter).setSchemas(schemas);
+    private void addParameterRewriter(final Collection<ParameterRewriter> paramRewriters, final ParameterRewriter toBeAddedParamRewriter) {
+        if (toBeAddedParamRewriter instanceof SchemaMetaDataAware) {
+            ((SchemaMetaDataAware) toBeAddedParamRewriter).setSchemas(schemas);
         }
-        if (toBeAddedParameterRewriter instanceof ShardingRuleAware) {
-            ((ShardingRuleAware) toBeAddedParameterRewriter).setShardingRule(shardingRule);
+        if (toBeAddedParamRewriter instanceof ShardingRuleAware) {
+            ((ShardingRuleAware) toBeAddedParamRewriter).setShardingRule(shardingRule);
         }
-        if (toBeAddedParameterRewriter instanceof RouteContextAware) {
-            ((RouteContextAware) toBeAddedParameterRewriter).setRouteContext(routeContext);
+        if (toBeAddedParamRewriter instanceof RouteContextAware) {
+            ((RouteContextAware) toBeAddedParamRewriter).setRouteContext(routeContext);
         }
-        if (toBeAddedParameterRewriter.isNeedRewrite(sqlStatementContext)) {
-            parameterRewriters.add(toBeAddedParameterRewriter);
+        if (toBeAddedParamRewriter.isNeedRewrite(sqlStatementContext)) {
+            paramRewriters.add(toBeAddedParamRewriter);
         }
     }
 }
diff --git a/features/sharding/core/src/main/java/org/apache/shardingsphere/sharding/rewrite/parameter/impl/ShardingGeneratedKeyInsertValueParameterRewriter.java b/features/sharding/core/src/main/java/org/apache/shardingsphere/sharding/rewrite/parameter/impl/ShardingGeneratedKeyInsertValueParameterRewriter.java
index 307db9d524b..880d2d982a1 100644
--- a/features/sharding/core/src/main/java/org/apache/shardingsphere/sharding/rewrite/parameter/impl/ShardingGeneratedKeyInsertValueParameterRewriter.java
+++ b/features/sharding/core/src/main/java/org/apache/shardingsphere/sharding/rewrite/parameter/impl/ShardingGeneratedKeyInsertValueParameterRewriter.java
@@ -45,9 +45,9 @@ public final class ShardingGeneratedKeyInsertValueParameterRewriter implements P
     }
     
     @Override
-    public void rewrite(final ParameterBuilder parameterBuilder, final InsertStatementContext insertStatementContext, final List<Object> params) {
+    public void rewrite(final ParameterBuilder paramBuilder, final InsertStatementContext insertStatementContext, final List<Object> params) {
         Preconditions.checkState(insertStatementContext.getGeneratedKeyContext().isPresent());
-        ((GroupedParameterBuilder) parameterBuilder).setDerivedColumnName(insertStatementContext.getGeneratedKeyContext().get().getColumnName());
+        ((GroupedParameterBuilder) paramBuilder).setDerivedColumnName(insertStatementContext.getGeneratedKeyContext().get().getColumnName());
         Iterator<Comparable<?>> generatedValues = insertStatementContext.getGeneratedKeyContext().get().getGeneratedValues().iterator();
         int count = 0;
         int parameterCount = 0;
@@ -55,7 +55,7 @@ public final class ShardingGeneratedKeyInsertValueParameterRewriter implements P
             parameterCount += insertStatementContext.getInsertValueContexts().get(count).getParameterCount();
             Comparable<?> generatedValue = generatedValues.next();
             if (!each.isEmpty()) {
-                ((GroupedParameterBuilder) parameterBuilder).getParameterBuilders().get(count).addAddedParameters(parameterCount, new ArrayList<>(Collections.singleton(generatedValue)));
+                ((GroupedParameterBuilder) paramBuilder).getParameterBuilders().get(count).addAddedParameters(parameterCount, new ArrayList<>(Collections.singleton(generatedValue)));
             }
             count++;
         }
diff --git a/features/sharding/core/src/main/java/org/apache/shardingsphere/sharding/rewrite/parameter/impl/ShardingPaginationParameterRewriter.java b/features/sharding/core/src/main/java/org/apache/shardingsphere/sharding/rewrite/parameter/impl/ShardingPaginationParameterRewriter.java
index 5e24ce453fb..333811f2f45 100644
--- a/features/sharding/core/src/main/java/org/apache/shardingsphere/sharding/rewrite/parameter/impl/ShardingPaginationParameterRewriter.java
+++ b/features/sharding/core/src/main/java/org/apache/shardingsphere/sharding/rewrite/parameter/impl/ShardingPaginationParameterRewriter.java
@@ -39,24 +39,22 @@ public final class ShardingPaginationParameterRewriter implements ParameterRewri
     
     @Override
     public boolean isNeedRewrite(final SQLStatementContext<?> sqlStatementContext) {
-        return sqlStatementContext instanceof SelectStatementContext
-                && ((SelectStatementContext) sqlStatementContext).getPaginationContext().isHasPagination() && !routeContext.isSingleRouting();
+        return sqlStatementContext instanceof SelectStatementContext && ((SelectStatementContext) sqlStatementContext).getPaginationContext().isHasPagination() && !routeContext.isSingleRouting();
     }
     
     @Override
-    public void rewrite(final ParameterBuilder parameterBuilder, final SelectStatementContext selectStatementContext, final List<Object> params) {
+    public void rewrite(final ParameterBuilder paramBuilder, final SelectStatementContext selectStatementContext, final List<Object> params) {
         PaginationContext pagination = selectStatementContext.getPaginationContext();
-        pagination.getOffsetParameterIndex().ifPresent(optional -> rewriteOffset(pagination, optional, (StandardParameterBuilder) parameterBuilder));
+        pagination.getOffsetParameterIndex().ifPresent(optional -> rewriteOffset(pagination, optional, (StandardParameterBuilder) paramBuilder));
         pagination.getRowCountParameterIndex()
-                .ifPresent(optional -> rewriteRowCount(pagination, optional, (StandardParameterBuilder) parameterBuilder, selectStatementContext));
+                .ifPresent(optional -> rewriteRowCount(pagination, optional, (StandardParameterBuilder) paramBuilder, selectStatementContext));
     }
     
-    private void rewriteOffset(final PaginationContext pagination, final int offsetParameterIndex, final StandardParameterBuilder parameterBuilder) {
-        parameterBuilder.addReplacedParameters(offsetParameterIndex, pagination.getRevisedOffset());
+    private void rewriteOffset(final PaginationContext pagination, final int offsetParamIndex, final StandardParameterBuilder paramBuilder) {
+        paramBuilder.addReplacedParameters(offsetParamIndex, pagination.getRevisedOffset());
     }
     
-    private void rewriteRowCount(final PaginationContext pagination,
-                                 final int rowCountParameterIndex, final StandardParameterBuilder parameterBuilder, final SQLStatementContext sqlStatementContext) {
-        parameterBuilder.addReplacedParameters(rowCountParameterIndex, pagination.getRevisedRowCount((SelectStatementContext) sqlStatementContext));
+    private void rewriteRowCount(final PaginationContext pagination, final int rowCountParamIndex, final StandardParameterBuilder paramBuilder, final SQLStatementContext sqlStatementContext) {
+        paramBuilder.addReplacedParameters(rowCountParamIndex, pagination.getRevisedRowCount((SelectStatementContext) sqlStatementContext));
     }
 }
diff --git a/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/rewrite/parameter/ShardingGeneratedKeyInsertValueParameterRewriterTest.java b/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/rewrite/parameter/ShardingGeneratedKeyInsertValueParameterRewriterTest.java
index 745ab89e2b5..4caa20691f5 100644
--- a/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/rewrite/parameter/ShardingGeneratedKeyInsertValueParameterRewriterTest.java
+++ b/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/rewrite/parameter/ShardingGeneratedKeyInsertValueParameterRewriterTest.java
@@ -68,8 +68,8 @@ public final class ShardingGeneratedKeyInsertValueParameterRewriterTest {
     public void assertRewrite() {
         InsertStatementContext insertStatementContext = getInsertStatementContext();
         ParameterBuilder groupedParamBuilder = getParameterBuilder();
-        ShardingGeneratedKeyInsertValueParameterRewriter shardingGeneratedKeyInsertValueParameterRewriter = new ShardingGeneratedKeyInsertValueParameterRewriter();
-        shardingGeneratedKeyInsertValueParameterRewriter.rewrite(groupedParamBuilder, insertStatementContext, null);
+        ShardingGeneratedKeyInsertValueParameterRewriter paramRewriter = new ShardingGeneratedKeyInsertValueParameterRewriter();
+        paramRewriter.rewrite(groupedParamBuilder, insertStatementContext, null);
         assertThat(((GroupedParameterBuilder) groupedParamBuilder).getParameterBuilders().get(0).getAddedIndexAndParameters().get(TEST_PARAMETER_COUNT), hasItem(TEST_GENERATED_VALUE));
     }
     
diff --git a/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/rewrite/parameter/ShardingPaginationParameterRewriterTest.java b/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/rewrite/parameter/ShardingPaginationParameterRewriterTest.java
index 9875048a1b2..ef3a1f678f7 100644
--- a/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/rewrite/parameter/ShardingPaginationParameterRewriterTest.java
+++ b/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/rewrite/parameter/ShardingPaginationParameterRewriterTest.java
@@ -53,37 +53,37 @@ public final class ShardingPaginationParameterRewriterTest {
     
     @Test
     public void assertIsNeedRewrite() {
-        ShardingPaginationParameterRewriter shardingPaginationParameterRewriter = new ShardingPaginationParameterRewriter();
+        ShardingPaginationParameterRewriter paramRewriter = new ShardingPaginationParameterRewriter();
         RouteContext routeContext = mock(RouteContext.class);
-        shardingPaginationParameterRewriter.setRouteContext(routeContext);
+        paramRewriter.setRouteContext(routeContext);
         InsertStatementContext insertStatementContext = mock(InsertStatementContext.class);
-        assertFalse(shardingPaginationParameterRewriter.isNeedRewrite(insertStatementContext));
+        assertFalse(paramRewriter.isNeedRewrite(insertStatementContext));
         SelectStatementContext selectStatementContext = mock(SelectStatementContext.class, RETURNS_DEEP_STUBS);
         when(selectStatementContext.getPaginationContext().isHasPagination()).thenReturn(Boolean.FALSE);
-        assertFalse(shardingPaginationParameterRewriter.isNeedRewrite(selectStatementContext));
+        assertFalse(paramRewriter.isNeedRewrite(selectStatementContext));
         when(selectStatementContext.getPaginationContext().isHasPagination()).thenReturn(Boolean.TRUE);
         when(routeContext.isSingleRouting()).thenReturn(Boolean.TRUE);
-        assertFalse(shardingPaginationParameterRewriter.isNeedRewrite(selectStatementContext));
+        assertFalse(paramRewriter.isNeedRewrite(selectStatementContext));
         when(routeContext.isSingleRouting()).thenReturn(Boolean.FALSE);
-        assertTrue(shardingPaginationParameterRewriter.isNeedRewrite(selectStatementContext));
+        assertTrue(paramRewriter.isNeedRewrite(selectStatementContext));
     }
     
     @Test
     public void assertRewrite() {
         addOffsetParametersFlag = false;
         addRowCountParameterFlag = false;
-        StandardParameterBuilder standardParameterBuilder = mock(StandardParameterBuilder.class);
+        StandardParameterBuilder standardParamBuilder = mock(StandardParameterBuilder.class);
         doAnswer((Answer<Void>) invocation -> {
             int index = invocation.getArgument(0);
-            long parameter = invocation.getArgument(1);
-            if (index == TEST_OFFSET_PARAMETER_INDEX && parameter == TEST_REVISED_OFFSET) {
+            long param = invocation.getArgument(1);
+            if (index == TEST_OFFSET_PARAMETER_INDEX && param == TEST_REVISED_OFFSET) {
                 addOffsetParametersFlag = true;
             }
-            if (index == TEST_ROW_COUNT_PARAMETER_INDEX && parameter == TEST_REVISED_ROW_COUNT) {
+            if (index == TEST_ROW_COUNT_PARAMETER_INDEX && param == TEST_REVISED_ROW_COUNT) {
                 addRowCountParameterFlag = true;
             }
             return null;
-        }).when(standardParameterBuilder).addReplacedParameters(anyInt(), anyLong());
+        }).when(standardParamBuilder).addReplacedParameters(anyInt(), anyLong());
         SelectStatementContext selectStatementContext = mock(SelectStatementContext.class);
         PaginationContext pagination = mock(PaginationContext.class);
         when(pagination.getOffsetParameterIndex()).thenReturn(Optional.of(TEST_OFFSET_PARAMETER_INDEX));
@@ -91,8 +91,7 @@ public final class ShardingPaginationParameterRewriterTest {
         when(pagination.getRevisedOffset()).thenReturn(TEST_REVISED_OFFSET);
         when(pagination.getRevisedRowCount(selectStatementContext)).thenReturn(TEST_REVISED_ROW_COUNT);
         when(selectStatementContext.getPaginationContext()).thenReturn(pagination);
-        ShardingPaginationParameterRewriter shardingPaginationParameterRewriter = new ShardingPaginationParameterRewriter();
-        shardingPaginationParameterRewriter.rewrite(standardParameterBuilder, selectStatementContext, null);
+        new ShardingPaginationParameterRewriter().rewrite(standardParamBuilder, selectStatementContext, null);
         assertTrue(addOffsetParametersFlag);
         assertTrue(addRowCountParameterFlag);
     }
diff --git a/features/sharding/distsql/handler/src/main/java/org/apache/shardingsphere/migration/distsql/handler/update/MigrateTableUpdater.java b/features/sharding/distsql/handler/src/main/java/org/apache/shardingsphere/migration/distsql/handler/update/MigrateTableUpdater.java
index bee94607911..a79ccbf9b71 100644
--- a/features/sharding/distsql/handler/src/main/java/org/apache/shardingsphere/migration/distsql/handler/update/MigrateTableUpdater.java
+++ b/features/sharding/distsql/handler/src/main/java/org/apache/shardingsphere/migration/distsql/handler/update/MigrateTableUpdater.java
@@ -38,9 +38,8 @@ public final class MigrateTableUpdater implements RALUpdater<MigrateTableStateme
         log.info("start migrate job by {}", sqlStatement);
         String targetDatabaseName = null == sqlStatement.getTargetDatabaseName() ? databaseName : sqlStatement.getTargetDatabaseName();
         Preconditions.checkNotNull(targetDatabaseName, "Target database name is null. You could define it in DistSQL or select a database.");
-        CreateMigrationJobParameter createMigrationJobParameter = new CreateMigrationJobParameter(
-                sqlStatement.getSourceResourceName(), sqlStatement.getSourceSchemaName(), sqlStatement.getSourceTableName(), targetDatabaseName, sqlStatement.getTargetTableName());
-        JOB_API.createJobAndStart(createMigrationJobParameter);
+        JOB_API.createJobAndStart(new CreateMigrationJobParameter(
+                sqlStatement.getSourceResourceName(), sqlStatement.getSourceSchemaName(), sqlStatement.getSourceTableName(), targetDatabaseName, sqlStatement.getTargetTableName()));
     }
     
     @Override
diff --git a/features/sharding/plugin/cache/src/main/java/org/apache/shardingsphere/sharding/cache/checker/ShardingRouteCacheableChecker.java b/features/sharding/plugin/cache/src/main/java/org/apache/shardingsphere/sharding/cache/checker/ShardingRouteCacheableChecker.java
index 2b5379a1a5e..3b4e1e56084 100644
--- a/features/sharding/plugin/cache/src/main/java/org/apache/shardingsphere/sharding/cache/checker/ShardingRouteCacheableChecker.java
+++ b/features/sharding/plugin/cache/src/main/java/org/apache/shardingsphere/sharding/cache/checker/ShardingRouteCacheableChecker.java
@@ -222,7 +222,7 @@ public final class ShardingRouteCacheableChecker {
             this.database = database;
             this.sql = sql;
             this.sqlStatementContext = sqlStatementContext;
-            this.parameters = new ArrayList<>(params);
+            parameters = new ArrayList<>(params);
         }
     }
 }
diff --git a/infra/binder/src/main/java/org/apache/shardingsphere/infra/binder/QueryContext.java b/infra/binder/src/main/java/org/apache/shardingsphere/infra/binder/QueryContext.java
index f3c2f849055..a8462d2d953 100644
--- a/infra/binder/src/main/java/org/apache/shardingsphere/infra/binder/QueryContext.java
+++ b/infra/binder/src/main/java/org/apache/shardingsphere/infra/binder/QueryContext.java
@@ -41,7 +41,7 @@ public final class QueryContext {
     public QueryContext(final SQLStatementContext<?> sqlStatementContext, final String sql, final List<Object> params) {
         this.sqlStatementContext = sqlStatementContext;
         this.sql = sql;
-        this.parameters = params;
+        parameters = params;
         if (sqlStatementContext instanceof TableAvailable) {
             ((TableAvailable) sqlStatementContext).getTablesContext().getDatabaseName().ifPresent(optional -> sqlStatementDatabaseName = optional);
         }
diff --git a/infra/binder/src/main/java/org/apache/shardingsphere/infra/binder/segment/insert/values/InsertSelectContext.java b/infra/binder/src/main/java/org/apache/shardingsphere/infra/binder/segment/insert/values/InsertSelectContext.java
index 43a19b7ae33..5b9ed63c36e 100644
--- a/infra/binder/src/main/java/org/apache/shardingsphere/infra/binder/segment/insert/values/InsertSelectContext.java
+++ b/infra/binder/src/main/java/org/apache/shardingsphere/infra/binder/segment/insert/values/InsertSelectContext.java
@@ -41,7 +41,7 @@ public final class InsertSelectContext {
     public InsertSelectContext(final SelectStatementContext selectStatementContext, final List<Object> params, final int parametersOffset) {
         parameterCount = selectStatementContext.getSqlStatement().getParameterCount();
         this.selectStatementContext = selectStatementContext;
-        this.parameters = getParameters(params, parametersOffset);
+        parameters = getParameters(params, parametersOffset);
     }
     
     private List<Object> getParameters(final List<Object> params, final int parametersOffset) {
diff --git a/infra/binder/src/main/java/org/apache/shardingsphere/infra/binder/segment/insert/values/InsertValueContext.java b/infra/binder/src/main/java/org/apache/shardingsphere/infra/binder/segment/insert/values/InsertValueContext.java
index 3bf7ad811c1..4dc4665b90c 100644
--- a/infra/binder/src/main/java/org/apache/shardingsphere/infra/binder/segment/insert/values/InsertValueContext.java
+++ b/infra/binder/src/main/java/org/apache/shardingsphere/infra/binder/segment/insert/values/InsertValueContext.java
@@ -50,7 +50,7 @@ public final class InsertValueContext {
         valueExpressions = getValueExpressions(assignments);
         parameterMarkerExpressions = ExpressionExtractUtil.getParameterMarkerExpressions(assignments);
         parameterCount = parameterMarkerExpressions.size();
-        this.parameters = getParameters(params, parametersOffset);
+        parameters = getParameters(params, parametersOffset);
     }
     
     private List<ExpressionSegment> getValueExpressions(final Collection<ExpressionSegment> assignments) {
@@ -86,9 +86,9 @@ public final class InsertValueContext {
     }
     
     private int getParameterIndex(final ParameterMarkerExpressionSegment paramMarkerExpression) {
-        int parameterIndex = parameterMarkerExpressions.indexOf(paramMarkerExpression);
-        Preconditions.checkArgument(parameterIndex >= 0, "Can not get parameter index.");
-        return parameterIndex;
+        int result = parameterMarkerExpressions.indexOf(paramMarkerExpression);
+        Preconditions.checkArgument(result >= 0, "Can not get parameter index.");
+        return result;
     }
     
     /**
diff --git a/infra/binder/src/main/java/org/apache/shardingsphere/infra/binder/segment/insert/values/OnDuplicateUpdateContext.java b/infra/binder/src/main/java/org/apache/shardingsphere/infra/binder/segment/insert/values/OnDuplicateUpdateContext.java
index d8df607551b..09bde68eb52 100644
--- a/infra/binder/src/main/java/org/apache/shardingsphere/infra/binder/segment/insert/values/OnDuplicateUpdateContext.java
+++ b/infra/binder/src/main/java/org/apache/shardingsphere/infra/binder/segment/insert/values/OnDuplicateUpdateContext.java
@@ -53,7 +53,7 @@ public final class OnDuplicateUpdateContext {
         valueExpressions = getValueExpressions(expressionSegments);
         parameterMarkerExpressions = ExpressionExtractUtil.getParameterMarkerExpressions(expressionSegments);
         parameterCount = parameterMarkerExpressions.size();
-        this.parameters = getParameters(params, parametersOffset);
+        parameters = getParameters(params, parametersOffset);
         columns = assignments.stream().map(each -> each.getColumns().get(0)).collect(Collectors.toList());
     }
     
@@ -89,10 +89,10 @@ public final class OnDuplicateUpdateContext {
         return ((LiteralExpressionSegment) valueExpression).getLiterals();
     }
     
-    private int getParameterIndex(final ParameterMarkerExpressionSegment parameterMarkerExpression) {
-        int parameterIndex = parameterMarkerExpressions.indexOf(parameterMarkerExpression);
-        Preconditions.checkArgument(parameterIndex >= 0, "Can not get parameter index.");
-        return parameterIndex;
+    private int getParameterIndex(final ParameterMarkerExpressionSegment paramMarkerExpression) {
+        int result = parameterMarkerExpressions.indexOf(paramMarkerExpression);
+        Preconditions.checkArgument(result >= 0, "Can not get parameter index.");
+        return result;
     }
     
     /**
diff --git a/infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/schema/loader/dialect/OpenGaussSchemaMetaDataLoader.java b/infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/schema/loader/dialect/OpenGaussSchemaMetaDataLoader.java
index 47be9fdae93..32eeca38650 100644
--- a/infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/schema/loader/dialect/OpenGaussSchemaMetaDataLoader.java
+++ b/infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/schema/loader/dialect/OpenGaussSchemaMetaDataLoader.java
@@ -134,9 +134,9 @@ public final class OpenGaussSchemaMetaDataLoader implements DialectSchemaMetaDat
     }
     
     private String getColumnMetaDataSQL(final Collection<String> schemaNames, final Collection<String> tables) {
-        String schemaNameParameter = schemaNames.stream().map(each -> String.format("'%s'", each)).collect(Collectors.joining(","));
-        return tables.isEmpty() ? String.format(TABLE_META_DATA_SQL_WITHOUT_TABLES, schemaNameParameter)
-                : String.format(TABLE_META_DATA_SQL_WITH_TABLES, schemaNameParameter, tables.stream().map(each -> String.format("'%s'", each)).collect(Collectors.joining(",")));
+        String schemaNameParam = schemaNames.stream().map(each -> String.format("'%s'", each)).collect(Collectors.joining(","));
+        return tables.isEmpty() ? String.format(TABLE_META_DATA_SQL_WITHOUT_TABLES, schemaNameParam)
+                : String.format(TABLE_META_DATA_SQL_WITH_TABLES, schemaNameParam, tables.stream().map(each -> String.format("'%s'", each)).collect(Collectors.joining(",")));
     }
     
     private Map<String, Multimap<String, IndexMetaData>> loadIndexMetaDataMap(final DataSource dataSource, final Collection<String> schemaNames) throws SQLException {
diff --git a/infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/schema/loader/dialect/PostgreSQLSchemaMetaDataLoader.java b/infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/schema/loader/dialect/PostgreSQLSchemaMetaDataLoader.java
index 37fc1cf43ff..1055ade4d71 100644
--- a/infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/schema/loader/dialect/PostgreSQLSchemaMetaDataLoader.java
+++ b/infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/schema/loader/dialect/PostgreSQLSchemaMetaDataLoader.java
@@ -174,9 +174,9 @@ public final class PostgreSQLSchemaMetaDataLoader implements DialectSchemaMetaDa
     }
     
     private String getColumnMetaDataSQL(final Collection<String> schemaNames, final Collection<String> tables) {
-        String schemaNameParameter = schemaNames.stream().map(each -> String.format("'%s'", each)).collect(Collectors.joining(","));
-        return tables.isEmpty() ? String.format(TABLE_META_DATA_SQL_WITHOUT_TABLES, schemaNameParameter)
-                : String.format(TABLE_META_DATA_SQL_WITH_TABLES, schemaNameParameter, tables.stream().map(each -> String.format("'%s'", each)).collect(Collectors.joining(",")));
+        String schemaNameParam = schemaNames.stream().map(each -> String.format("'%s'", each)).collect(Collectors.joining(","));
+        return tables.isEmpty() ? String.format(TABLE_META_DATA_SQL_WITHOUT_TABLES, schemaNameParam)
+                : String.format(TABLE_META_DATA_SQL_WITH_TABLES, schemaNameParam, tables.stream().map(each -> String.format("'%s'", each)).collect(Collectors.joining(",")));
     }
     
     private Map<String, Multimap<String, IndexMetaData>> loadIndexMetaDataMap(final DataSource dataSource, final Collection<String> schemaNames) throws SQLException {
diff --git a/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/context/SQLRewriteContext.java b/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/context/SQLRewriteContext.java
index 7500398e37a..baf0fc53fd1 100644
--- a/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/context/SQLRewriteContext.java
+++ b/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/context/SQLRewriteContext.java
@@ -67,7 +67,7 @@ public final class SQLRewriteContext {
         this.schemas = schemas;
         this.sqlStatementContext = sqlStatementContext;
         this.sql = sql;
-        this.parameters = params;
+        parameters = params;
         this.connectionContext = connectionContext;
         addSQLTokenGenerators(new DefaultTokenGeneratorBuilder(sqlStatementContext).getSQLTokenGenerators());
         parameterBuilder = ((sqlStatementContext instanceof InsertStatementContext) && (null == ((InsertStatementContext) sqlStatementContext).getInsertSelectContext()))
diff --git a/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/engine/RouteSQLRewriteEngine.java b/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/engine/RouteSQLRewriteEngine.java
index 2381a73b9c8..1df3aa96142 100644
--- a/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/engine/RouteSQLRewriteEngine.java
+++ b/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/engine/RouteSQLRewriteEngine.java
@@ -119,25 +119,25 @@ public final class RouteSQLRewriteEngine {
         return result;
     }
     
-    private List<Object> getParameters(final ParameterBuilder parameterBuilder, final RouteContext routeContext, final RouteUnit routeUnit) {
-        if (parameterBuilder instanceof StandardParameterBuilder) {
-            return parameterBuilder.getParameters();
+    private List<Object> getParameters(final ParameterBuilder paramBuilder, final RouteContext routeContext, final RouteUnit routeUnit) {
+        if (paramBuilder instanceof StandardParameterBuilder) {
+            return paramBuilder.getParameters();
         }
         return routeContext.getOriginalDataNodes().isEmpty()
-                ? ((GroupedParameterBuilder) parameterBuilder).getParameters()
-                : buildRouteParameters((GroupedParameterBuilder) parameterBuilder, routeContext, routeUnit);
+                ? ((GroupedParameterBuilder) paramBuilder).getParameters()
+                : buildRouteParameters((GroupedParameterBuilder) paramBuilder, routeContext, routeUnit);
     }
     
-    private List<Object> buildRouteParameters(final GroupedParameterBuilder parameterBuilder, final RouteContext routeContext, final RouteUnit routeUnit) {
+    private List<Object> buildRouteParameters(final GroupedParameterBuilder paramBuilder, final RouteContext routeContext, final RouteUnit routeUnit) {
         List<Object> result = new LinkedList<>();
         int count = 0;
         for (Collection<DataNode> each : routeContext.getOriginalDataNodes()) {
             if (isInSameDataNode(each, routeUnit)) {
-                result.addAll(parameterBuilder.getParameters(count));
+                result.addAll(paramBuilder.getParameters(count));
             }
             count++;
         }
-        result.addAll(parameterBuilder.getGenericParameterBuilder().getParameters());
+        result.addAll(paramBuilder.getGenericParameterBuilder().getParameters());
         return result;
     }
     
diff --git a/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/parameter/builder/impl/StandardParameterBuilder.java b/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/parameter/builder/impl/StandardParameterBuilder.java
index 942395cf3fc..336fb46248c 100644
--- a/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/parameter/builder/impl/StandardParameterBuilder.java
+++ b/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/parameter/builder/impl/StandardParameterBuilder.java
@@ -69,9 +69,9 @@ public final class StandardParameterBuilder implements ParameterBuilder {
         for (Entry<Integer, Object> entry : replacedIndexAndParameters.entrySet()) {
             replacedParams.set(entry.getKey(), entry.getValue());
         }
-        int maxParameterIndex = getMaxParameterIndex();
+        int maxParamIndex = getMaxParameterIndex();
         List<Object> result = new LinkedList<>();
-        for (int index = 0; index <= maxParameterIndex; index++) {
+        for (int index = 0; index <= maxParamIndex; index++) {
             List<Object> currentIndexParams = new LinkedList<>();
             if (replacedParams.size() > index) {
                 currentIndexParams.add(replacedParams.get(index));
diff --git a/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/parameter/rewriter/ParameterRewriter.java b/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/parameter/rewriter/ParameterRewriter.java
index c0e87a7b116..f9c48e1d143 100644
--- a/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/parameter/rewriter/ParameterRewriter.java
+++ b/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/parameter/rewriter/ParameterRewriter.java
@@ -40,9 +40,9 @@ public interface ParameterRewriter<T extends SQLStatementContext<?>> {
     /**
      * Rewrite SQL parameters.
      * 
-     * @param parameterBuilder parameter builder
+     * @param paramBuilder parameter builder
      * @param sqlStatementContext SQL statement context
      * @param params SQL parameters
      */
-    void rewrite(ParameterBuilder parameterBuilder, T sqlStatementContext, List<Object> params);
+    void rewrite(ParameterBuilder paramBuilder, T sqlStatementContext, List<Object> params);
 }
diff --git a/infra/rewrite/src/test/java/org/apache/shardingsphere/infra/rewrite/parameter/builder/impl/StandardParameterBuilderTest.java b/infra/rewrite/src/test/java/org/apache/shardingsphere/infra/rewrite/parameter/builder/impl/StandardParameterBuilderTest.java
index da0a9c8fe4b..fdb5aafc8f9 100644
--- a/infra/rewrite/src/test/java/org/apache/shardingsphere/infra/rewrite/parameter/builder/impl/StandardParameterBuilderTest.java
+++ b/infra/rewrite/src/test/java/org/apache/shardingsphere/infra/rewrite/parameter/builder/impl/StandardParameterBuilderTest.java
@@ -17,30 +17,20 @@
 
 package org.apache.shardingsphere.infra.rewrite.parameter.builder.impl;
 
-import org.junit.Before;
 import org.junit.Test;
 
 import java.util.Arrays;
 import java.util.Collections;
-import java.util.List;
 
 import static org.hamcrest.CoreMatchers.is;
 import static org.hamcrest.MatcherAssert.assertThat;
 
 public final class StandardParameterBuilderTest {
     
-    private final List<Object> parameters = Arrays.asList(1, 2, 1, 5);
-    
-    private StandardParameterBuilder parameterBuilder;
-    
-    @Before
-    public void setUp() {
-        parameterBuilder = new StandardParameterBuilder(parameters);
-        parameterBuilder.addAddedParameters(4, Collections.singleton(7));
-    }
-    
     @Test
     public void assertGetParameters() {
-        assertThat(parameterBuilder.getParameters(), is(Arrays.<Object>asList(1, 2, 1, 5, 7)));
+        StandardParameterBuilder paramBuilder = new StandardParameterBuilder(Arrays.asList(1, 2, 1, 5));
+        paramBuilder.addAddedParameters(4, Collections.singleton(7));
+        assertThat(paramBuilder.getParameters(), is(Arrays.<Object>asList(1, 2, 1, 5, 7)));
     }
 }
diff --git a/jdbc/core/src/main/java/org/apache/shardingsphere/driver/jdbc/core/datasource/ShardingSphereDataSource.java b/jdbc/core/src/main/java/org/apache/shardingsphere/driver/jdbc/core/datasource/ShardingSphereDataSource.java
index 8cba0f40744..03e63232112 100644
--- a/jdbc/core/src/main/java/org/apache/shardingsphere/driver/jdbc/core/datasource/ShardingSphereDataSource.java
+++ b/jdbc/core/src/main/java/org/apache/shardingsphere/driver/jdbc/core/datasource/ShardingSphereDataSource.java
@@ -71,9 +71,9 @@ public final class ShardingSphereDataSource extends AbstractDataSourceAdapter im
         Collection<RuleConfiguration> globalRuleConfigs = ruleConfigs.stream().filter(each -> each instanceof GlobalRuleConfiguration).collect(Collectors.toList());
         Collection<RuleConfiguration> databaseRuleConfigs = new LinkedList<>(ruleConfigs);
         databaseRuleConfigs.removeAll(globalRuleConfigs);
-        ContextManagerBuilderParameter parameter = new ContextManagerBuilderParameter(modeConfig, Collections.singletonMap(databaseName,
+        ContextManagerBuilderParameter param = new ContextManagerBuilderParameter(modeConfig, Collections.singletonMap(databaseName,
                 new DataSourceProvidedDatabaseConfiguration(dataSourceMap, databaseRuleConfigs)), globalRuleConfigs, props, Collections.emptyList(), instanceMetaData, false);
-        return ContextManagerBuilderFactory.getInstance(modeConfig).build(parameter);
+        return ContextManagerBuilderFactory.getInstance(modeConfig).build(param);
     }
     
     @Override
diff --git a/jdbc/core/src/test/java/org/apache/shardingsphere/driver/jdbc/adapter/PreparedStatementAdapterTest.java b/jdbc/core/src/test/java/org/apache/shardingsphere/driver/jdbc/adapter/PreparedStatementAdapterTest.java
index 810270314e3..37439490f6f 100644
--- a/jdbc/core/src/test/java/org/apache/shardingsphere/driver/jdbc/adapter/PreparedStatementAdapterTest.java
+++ b/jdbc/core/src/test/java/org/apache/shardingsphere/driver/jdbc/adapter/PreparedStatementAdapterTest.java
@@ -268,8 +268,8 @@ public final class PreparedStatementAdapterTest {
         assertParameter(shardingSpherePreparedStatement, 5, obj);
     }
     
-    private void assertParameter(final PreparedStatement actual, final int index, final Object parameter) {
-        assertThat(((ShardingSpherePreparedStatement) actual).getParameters().get(index - 1), is(parameter));
+    private void assertParameter(final PreparedStatement actual, final int index, final Object param) {
+        assertThat(((ShardingSpherePreparedStatement) actual).getParameters().get(index - 1), is(param));
     }
     
     @Test
diff --git a/jdbc/spring/infra/spring-boot-starter/src/main/java/org/apache/shardingsphere/spring/boot/util/PropertyUtil.java b/jdbc/spring/infra/spring-boot-starter/src/main/java/org/apache/shardingsphere/spring/boot/util/PropertyUtil.java
index d8a0fba6eff..238ad68af5b 100644
--- a/jdbc/spring/infra/spring-boot-starter/src/main/java/org/apache/shardingsphere/spring/boot/util/PropertyUtil.java
+++ b/jdbc/spring/infra/spring-boot-starter/src/main/java/org/apache/shardingsphere/spring/boot/util/PropertyUtil.java
@@ -92,15 +92,15 @@ public final class PropertyUtil {
         Constructor<?> resolverConstructor = resolverClass.getDeclaredConstructor(PropertyResolver.class);
         Method getSubPropertiesMethod = resolverClass.getDeclaredMethod("getSubProperties", String.class);
         Object resolverObject = resolverConstructor.newInstance(environment);
-        String prefixParameter = prefix.endsWith(".") ? prefix : prefix + ".";
+        String prefixParam = prefix.endsWith(".") ? prefix : prefix + ".";
         Method getPropertyMethod = resolverClass.getDeclaredMethod("getProperty", String.class);
-        Map<String, Object> dataSourceProps = (Map<String, Object>) getSubPropertiesMethod.invoke(resolverObject, prefixParameter);
+        Map<String, Object> dataSourceProps = (Map<String, Object>) getSubPropertiesMethod.invoke(resolverObject, prefixParam);
         Map<String, Object> result = new HashMap<>(dataSourceProps.size(), 1);
         for (Entry<String, Object> entry : dataSourceProps.entrySet()) {
             String key = entry.getKey();
             Object value = entry.getValue();
             if (handlePlaceholder && value instanceof String && ((String) value).contains(PlaceholderConfigurerSupport.DEFAULT_PLACEHOLDER_PREFIX)) {
-                String resolvedValue = (String) getPropertyMethod.invoke(resolverObject, prefixParameter + key);
+                String resolvedValue = (String) getPropertyMethod.invoke(resolverObject, prefixParam + key);
                 result.put(key, resolvedValue);
             } else {
                 result.put(key, value);
@@ -116,8 +116,8 @@ public final class PropertyUtil {
         Method getMethod = binderClass.getDeclaredMethod("get", Environment.class);
         Method bindMethod = binderClass.getDeclaredMethod("bind", String.class, Class.class);
         Object binderObject = getMethod.invoke(null, environment);
-        String prefixParameter = dashedPrefix.endsWith(".") ? dashedPrefix.substring(0, prefix.length() - 1) : dashedPrefix;
-        Object bindResultObject = bindMethod.invoke(binderObject, prefixParameter, targetClass);
+        String prefixParam = dashedPrefix.endsWith(".") ? dashedPrefix.substring(0, prefix.length() - 1) : dashedPrefix;
+        Object bindResultObject = bindMethod.invoke(binderObject, prefixParam, targetClass);
         Method resultGetMethod = bindResultObject.getClass().getDeclaredMethod("get");
         return resultGetMethod.invoke(bindResultObject);
     }
diff --git a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/ConsistencyCheckJobPublicAPI.java b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/ConsistencyCheckJobPublicAPI.java
index 039b2a0342c..d34b34a4717 100644
--- a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/ConsistencyCheckJobPublicAPI.java
+++ b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/ConsistencyCheckJobPublicAPI.java
@@ -34,10 +34,10 @@ public interface ConsistencyCheckJobPublicAPI extends PipelineJobPublicAPI, Requ
     /**
      * Create consistency check configuration and start job.
      *
-     * @param parameter create consistency check job parameter
+     * @param param create consistency check job parameter
      * @return job id
      */
-    String createJobAndStart(CreateConsistencyCheckJobParameter parameter);
+    String createJobAndStart(CreateConsistencyCheckJobParameter param);
     
     /**
      * Get latest data consistency check result.
diff --git a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/MigrationJobPublicAPI.java b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/MigrationJobPublicAPI.java
index 866c0948c8a..6c616ad0b93 100644
--- a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/MigrationJobPublicAPI.java
+++ b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/MigrationJobPublicAPI.java
@@ -55,8 +55,8 @@ public interface MigrationJobPublicAPI extends InventoryIncrementalJobPublicAPI,
     /**
      * Create job migration config and start.
      *
-     * @param parameter create migration job parameter
+     * @param param create migration job parameter
      * @return job id
      */
-    String createJobAndStart(CreateMigrationJobParameter parameter);
+    String createJobAndStart(CreateMigrationJobParameter param);
 }
diff --git a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/PipelineDataSourceConfigurationFactory.java b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/PipelineDataSourceConfigurationFactory.java
index c7bce682cd0..eb98bb58114 100644
--- a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/PipelineDataSourceConfigurationFactory.java
+++ b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/PipelineDataSourceConfigurationFactory.java
@@ -33,15 +33,15 @@ public final class PipelineDataSourceConfigurationFactory {
      * Create new instance of pipeline data source configuration.
      *
      * @param type type of pipeline data source configuration
-     * @param parameter parameter of pipeline data source configuration
+     * @param param parameter of pipeline data source configuration
      * @return created instance
      */
-    public static PipelineDataSourceConfiguration newInstance(final String type, final String parameter) {
+    public static PipelineDataSourceConfiguration newInstance(final String type, final String param) {
         switch (type) {
             case StandardPipelineDataSourceConfiguration.TYPE:
-                return new StandardPipelineDataSourceConfiguration(parameter);
+                return new StandardPipelineDataSourceConfiguration(param);
             case ShardingSpherePipelineDataSourceConfiguration.TYPE:
-                return new ShardingSpherePipelineDataSourceConfiguration(parameter);
+                return new ShardingSpherePipelineDataSourceConfiguration(param);
             default:
                 throw new UnsupportedSQLOperationException(String.format("Unsupported data source type `%s`", type));
         }
diff --git a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/impl/ShardingSpherePipelineDataSourceConfiguration.java b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/impl/ShardingSpherePipelineDataSourceConfiguration.java
index 8b4531637cd..40db91b8d45 100644
--- a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/impl/ShardingSpherePipelineDataSourceConfiguration.java
+++ b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/impl/ShardingSpherePipelineDataSourceConfiguration.java
@@ -57,9 +57,9 @@ public final class ShardingSpherePipelineDataSourceConfiguration implements Pipe
     
     private final DatabaseType databaseType;
     
-    public ShardingSpherePipelineDataSourceConfiguration(final String parameter) {
-        this.parameter = parameter;
-        rootConfig = YamlEngine.unmarshal(parameter, YamlRootConfiguration.class, true);
+    public ShardingSpherePipelineDataSourceConfiguration(final String param) {
+        parameter = param;
+        rootConfig = YamlEngine.unmarshal(param, YamlRootConfiguration.class, true);
         Map<String, Object> props = rootConfig.getDataSources().values().iterator().next();
         databaseType = DatabaseTypeEngine.getDatabaseType(getJdbcUrl(props));
         appendJdbcQueryProperties(databaseType.getType());
@@ -67,8 +67,7 @@ public final class ShardingSpherePipelineDataSourceConfiguration implements Pipe
     }
     
     public ShardingSpherePipelineDataSourceConfiguration(final YamlRootConfiguration rootConfig) {
-        YamlParameterConfiguration parameterConfig = new YamlParameterConfiguration(rootConfig.getDataSources(), rootConfig.getRules());
-        this.parameter = YamlEngine.marshal(parameterConfig);
+        parameter = YamlEngine.marshal(new YamlParameterConfiguration(rootConfig.getDataSources(), rootConfig.getRules()));
         this.rootConfig = rootConfig;
         Map<String, Object> props = rootConfig.getDataSources().values().iterator().next();
         databaseType = DatabaseTypeEngine.getDatabaseType(getJdbcUrl(props));
diff --git a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/impl/StandardPipelineDataSourceConfiguration.java b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/impl/StandardPipelineDataSourceConfiguration.java
index adb3c3c6850..03533affb42 100644
--- a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/impl/StandardPipelineDataSourceConfiguration.java
+++ b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/impl/StandardPipelineDataSourceConfiguration.java
@@ -58,16 +58,16 @@ public final class StandardPipelineDataSourceConfiguration implements PipelineDa
     private final DatabaseType databaseType;
     
     @SuppressWarnings("unchecked")
-    public StandardPipelineDataSourceConfiguration(final String parameter) {
-        this(parameter, YamlEngine.unmarshal(parameter, Map.class));
+    public StandardPipelineDataSourceConfiguration(final String param) {
+        this(param, YamlEngine.unmarshal(param, Map.class));
     }
     
-    public StandardPipelineDataSourceConfiguration(final Map<String, Object> yamlDataSourceConfig) {
-        this(YamlEngine.marshal(yamlDataSourceConfig), yamlDataSourceConfig);
+    public StandardPipelineDataSourceConfiguration(final Map<String, Object> yamlConfig) {
+        this(YamlEngine.marshal(yamlConfig), yamlConfig);
     }
     
-    private StandardPipelineDataSourceConfiguration(final String parameter, final Map<String, Object> yamlConfig) {
-        this.parameter = parameter;
+    private StandardPipelineDataSourceConfiguration(final String param, final Map<String, Object> yamlConfig) {
+        parameter = param;
         for (String each : Arrays.asList("minPoolSize", "minimumIdle")) {
             yamlConfig.put(each, "1");
         }
diff --git a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/job/progress/listener/PipelineJobProgressListener.java b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/job/progress/listener/PipelineJobProgressListener.java
index b8fadbde343..c92254dbc34 100644
--- a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/job/progress/listener/PipelineJobProgressListener.java
+++ b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/job/progress/listener/PipelineJobProgressListener.java
@@ -25,7 +25,7 @@ public interface PipelineJobProgressListener {
     /**
      * Emit on progress updated.
      *
-     * @param parameter process update parameter
+     * @param param process update parameter
      */
-    void onProgressUpdated(PipelineJobProgressUpdatedParameter parameter);
+    void onProgressUpdated(PipelineJobProgressUpdatedParameter param);
 }
diff --git a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/spi/check/consistency/DataConsistencyCalculateAlgorithm.java b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/spi/check/consistency/DataConsistencyCalculateAlgorithm.java
index 64474fbc009..a1f466d6e54 100644
--- a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/spi/check/consistency/DataConsistencyCalculateAlgorithm.java
+++ b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/spi/check/consistency/DataConsistencyCalculateAlgorithm.java
@@ -32,10 +32,10 @@ public interface DataConsistencyCalculateAlgorithm extends ShardingSphereAlgorit
     /**
      * Calculate data for consistency check.
      *
-     * @param parameter data consistency calculate parameter
+     * @param param data consistency calculate parameter
      * @return calculated result
      */
-    Iterable<DataConsistencyCalculatedResult> calculate(DataConsistencyCalculateParameter parameter);
+    Iterable<DataConsistencyCalculatedResult> calculate(DataConsistencyCalculateParameter param);
     
     /**
      * Cancel calculation.
diff --git a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/SingleTableInventoryDataConsistencyChecker.java b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/SingleTableInventoryDataConsistencyChecker.java
index 899c0f17ceb..476283688f2 100644
--- a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/SingleTableInventoryDataConsistencyChecker.java
+++ b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/SingleTableInventoryDataConsistencyChecker.java
@@ -103,15 +103,15 @@ public final class SingleTableInventoryDataConsistencyChecker {
         ShardingSpherePreconditions.checkNotNull(tableMetaData, () -> new PipelineTableDataConsistencyCheckLoadingFailedException(schemaName, sourceTableName));
         Collection<String> columnNames = tableMetaData.getColumnNames();
         Map<String, Object> tableCheckPositions = jobItemContext.getTableCheckPositions();
-        DataConsistencyCalculateParameter sourceParameter = buildParameter(
+        DataConsistencyCalculateParameter sourceParam = buildParameter(
                 sourceDataSource, schemaName, sourceTableName, columnNames, sourceDatabaseType, targetDatabaseType, uniqueKey,
                 tableCheckPositions.get(sourceTableName));
         String targetTableName = targetTable.getTableName().getOriginal();
-        DataConsistencyCalculateParameter targetParameter = buildParameter(
+        DataConsistencyCalculateParameter targetParam = buildParameter(
                 targetDataSource, targetTable.getSchemaName().getOriginal(), targetTableName, columnNames, targetDatabaseType, sourceDatabaseType, uniqueKey,
                 tableCheckPositions.get(targetTableName));
-        Iterator<DataConsistencyCalculatedResult> sourceCalculatedResults = calculateAlgorithm.calculate(sourceParameter).iterator();
-        Iterator<DataConsistencyCalculatedResult> targetCalculatedResults = calculateAlgorithm.calculate(targetParameter).iterator();
+        Iterator<DataConsistencyCalculatedResult> sourceCalculatedResults = calculateAlgorithm.calculate(sourceParam).iterator();
+        Iterator<DataConsistencyCalculatedResult> targetCalculatedResults = calculateAlgorithm.calculate(targetParam).iterator();
         long sourceRecordsCount = 0;
         long targetRecordsCount = 0;
         boolean contentMatched = true;
diff --git a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/algorithm/AbstractStreamingDataConsistencyCalculateAlgorithm.java b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/algorithm/AbstractStreamingDataConsistencyCalculateAlgorithm.java
index c1c18347e88..2531d0ebf02 100644
--- a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/algorithm/AbstractStreamingDataConsistencyCalculateAlgorithm.java
+++ b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/algorithm/AbstractStreamingDataConsistencyCalculateAlgorithm.java
@@ -36,17 +36,17 @@ import java.util.concurrent.atomic.AtomicInteger;
 public abstract class AbstractStreamingDataConsistencyCalculateAlgorithm extends AbstractDataConsistencyCalculateAlgorithm {
     
     @Override
-    public final Iterable<DataConsistencyCalculatedResult> calculate(final DataConsistencyCalculateParameter parameter) {
-        return new ResultIterable(parameter);
+    public final Iterable<DataConsistencyCalculatedResult> calculate(final DataConsistencyCalculateParameter param) {
+        return new ResultIterable(param);
     }
     
     /**
      * Calculate chunked records at one time.
      *
-     * @param parameter data consistency calculate parameter
+     * @param param data consistency calculate parameter
      * @return optional calculated result, empty means there's no more result
      */
-    protected abstract Optional<DataConsistencyCalculatedResult> calculateChunk(DataConsistencyCalculateParameter parameter);
+    protected abstract Optional<DataConsistencyCalculatedResult> calculateChunk(DataConsistencyCalculateParameter param);
     
     /**
      * It's not thread-safe, it should be executed in only one thread at the same time.
@@ -54,18 +54,18 @@ public abstract class AbstractStreamingDataConsistencyCalculateAlgorithm extends
     @RequiredArgsConstructor
     final class ResultIterable implements Iterable<DataConsistencyCalculatedResult> {
         
-        private final DataConsistencyCalculateParameter parameter;
+        private final DataConsistencyCalculateParameter param;
         
         @Override
         public Iterator<DataConsistencyCalculatedResult> iterator() {
-            return new ResultIterator(parameter);
+            return new ResultIterator(param);
         }
     }
     
     @RequiredArgsConstructor
     final class ResultIterator implements Iterator<DataConsistencyCalculatedResult> {
         
-        private final DataConsistencyCalculateParameter parameter;
+        private final DataConsistencyCalculateParameter param;
         
         private final AtomicInteger calculationCount = new AtomicInteger(0);
         
@@ -81,7 +81,7 @@ public abstract class AbstractStreamingDataConsistencyCalculateAlgorithm extends
         public DataConsistencyCalculatedResult next() {
             calculateIfNecessary();
             Optional<DataConsistencyCalculatedResult> nextResult = this.nextResult;
-            parameter.setPreviousCalculatedResult(nextResult.orElse(null));
+            param.setPreviousCalculatedResult(nextResult.orElse(null));
             this.nextResult = null;
             return nextResult.orElse(null);
         }
@@ -90,7 +90,7 @@ public abstract class AbstractStreamingDataConsistencyCalculateAlgorithm extends
             if (null != nextResult) {
                 return;
             }
-            nextResult = calculateChunk(parameter);
+            nextResult = calculateChunk(param);
             if (!nextResult.isPresent()) {
                 log.info("nextResult not present, calculation done. calculationCount={}", calculationCount);
             }
diff --git a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/algorithm/CRC32MatchDataConsistencyCalculateAlgorithm.java b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/algorithm/CRC32MatchDataConsistencyCalculateAlgorithm.java
index aefc709ebb0..f4a27a1dc25 100644
--- a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/algorithm/CRC32MatchDataConsistencyCalculateAlgorithm.java
+++ b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/algorithm/CRC32MatchDataConsistencyCalculateAlgorithm.java
@@ -57,17 +57,17 @@ public final class CRC32MatchDataConsistencyCalculateAlgorithm extends AbstractD
     }
     
     @Override
-    public Iterable<DataConsistencyCalculatedResult> calculate(final DataConsistencyCalculateParameter parameter) {
-        PipelineSQLBuilder sqlBuilder = PipelineSQLBuilderFactory.getInstance(parameter.getDatabaseType());
-        List<CalculatedItem> calculatedItems = parameter.getColumnNames().stream().map(each -> calculateCRC32(sqlBuilder, parameter, each)).collect(Collectors.toList());
+    public Iterable<DataConsistencyCalculatedResult> calculate(final DataConsistencyCalculateParameter param) {
+        PipelineSQLBuilder sqlBuilder = PipelineSQLBuilderFactory.getInstance(param.getDatabaseType());
+        List<CalculatedItem> calculatedItems = param.getColumnNames().stream().map(each -> calculateCRC32(sqlBuilder, param, each)).collect(Collectors.toList());
         return Collections.singletonList(new CalculatedResult(calculatedItems.get(0).getRecordsCount(), calculatedItems.stream().map(CalculatedItem::getCrc32).collect(Collectors.toList())));
     }
     
-    private CalculatedItem calculateCRC32(final PipelineSQLBuilder sqlBuilder, final DataConsistencyCalculateParameter parameter, final String columnName) {
-        Optional<String> sql = sqlBuilder.buildCRC32SQL(parameter.getSchemaName(), parameter.getLogicTableName(), columnName);
-        ShardingSpherePreconditions.checkState(sql.isPresent(), () -> new UnsupportedCRC32DataConsistencyCalculateAlgorithmException(parameter.getDatabaseType()));
+    private CalculatedItem calculateCRC32(final PipelineSQLBuilder sqlBuilder, final DataConsistencyCalculateParameter param, final String columnName) {
+        Optional<String> sql = sqlBuilder.buildCRC32SQL(param.getSchemaName(), param.getLogicTableName(), columnName);
+        ShardingSpherePreconditions.checkState(sql.isPresent(), () -> new UnsupportedCRC32DataConsistencyCalculateAlgorithmException(param.getDatabaseType()));
         try (
-                Connection connection = parameter.getDataSource().getConnection();
+                Connection connection = param.getDataSource().getConnection();
                 PreparedStatement preparedStatement = setCurrentStatement(connection.prepareStatement(sql.get()));
                 ResultSet resultSet = preparedStatement.executeQuery()) {
             resultSet.next();
@@ -75,7 +75,7 @@ public final class CRC32MatchDataConsistencyCalculateAlgorithm extends AbstractD
             int recordsCount = resultSet.getInt(2);
             return new CalculatedItem(crc32, recordsCount);
         } catch (final SQLException ex) {
-            throw new PipelineTableDataConsistencyCheckLoadingFailedException(parameter.getSchemaName(), parameter.getLogicTableName(), ex);
+            throw new PipelineTableDataConsistencyCheckLoadingFailedException(param.getSchemaName(), param.getLogicTableName(), ex);
         }
     }
     
diff --git a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/algorithm/DataMatchDataConsistencyCalculateAlgorithm.java b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/algorithm/DataMatchDataConsistencyCalculateAlgorithm.java
index 676c3c71fcd..92492a3099f 100644
--- a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/algorithm/DataMatchDataConsistencyCalculateAlgorithm.java
+++ b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/algorithm/DataMatchDataConsistencyCalculateAlgorithm.java
@@ -89,14 +89,14 @@ public final class DataMatchDataConsistencyCalculateAlgorithm extends AbstractSt
     }
     
     @Override
-    protected Optional<DataConsistencyCalculatedResult> calculateChunk(final DataConsistencyCalculateParameter parameter) {
-        CalculatedResult previousCalculatedResult = (CalculatedResult) parameter.getPreviousCalculatedResult();
-        String sql = getQuerySQL(parameter);
+    protected Optional<DataConsistencyCalculatedResult> calculateChunk(final DataConsistencyCalculateParameter param) {
+        CalculatedResult previousCalculatedResult = (CalculatedResult) param.getPreviousCalculatedResult();
+        String sql = getQuerySQL(param);
         try (
-                Connection connection = parameter.getDataSource().getConnection();
+                Connection connection = param.getDataSource().getConnection();
                 PreparedStatement preparedStatement = setCurrentStatement(connection.prepareStatement(sql))) {
             preparedStatement.setFetchSize(chunkSize);
-            Object tableCheckPosition = parameter.getTableCheckPosition();
+            Object tableCheckPosition = param.getTableCheckPosition();
             if (null == previousCalculatedResult) {
                 if (null == tableCheckPosition) {
                     preparedStatement.setInt(1, chunkSize);
@@ -111,10 +111,10 @@ public final class DataMatchDataConsistencyCalculateAlgorithm extends AbstractSt
             Collection<Collection<Object>> records = new LinkedList<>();
             Object maxUniqueKeyValue = null;
             try (ResultSet resultSet = preparedStatement.executeQuery()) {
-                ColumnValueReader columnValueReader = ColumnValueReaderFactory.getInstance(parameter.getDatabaseType());
+                ColumnValueReader columnValueReader = ColumnValueReaderFactory.getInstance(param.getDatabaseType());
                 while (resultSet.next()) {
                     if (isCanceling()) {
-                        throw new PipelineTableDataConsistencyCheckLoadingFailedException(parameter.getSchemaName(), parameter.getLogicTableName());
+                        throw new PipelineTableDataConsistencyCheckLoadingFailedException(param.getSchemaName(), param.getLogicTableName());
                     }
                     ResultSetMetaData resultSetMetaData = resultSet.getMetaData();
                     int columnCount = resultSetMetaData.getColumnCount();
@@ -123,24 +123,24 @@ public final class DataMatchDataConsistencyCalculateAlgorithm extends AbstractSt
                         record.add(columnValueReader.readValue(resultSet, resultSetMetaData, columnIndex));
                     }
                     records.add(record);
-                    maxUniqueKeyValue = columnValueReader.readValue(resultSet, resultSetMetaData, parameter.getUniqueKey().getOrdinalPosition());
+                    maxUniqueKeyValue = columnValueReader.readValue(resultSet, resultSetMetaData, param.getUniqueKey().getOrdinalPosition());
                 }
             }
             return records.isEmpty() ? Optional.empty() : Optional.of(new CalculatedResult(maxUniqueKeyValue, records.size(), records));
         } catch (final SQLException ex) {
-            throw new PipelineTableDataConsistencyCheckLoadingFailedException(parameter.getSchemaName(), parameter.getLogicTableName(), ex);
+            throw new PipelineTableDataConsistencyCheckLoadingFailedException(param.getSchemaName(), param.getLogicTableName(), ex);
         }
     }
     
-    private String getQuerySQL(final DataConsistencyCalculateParameter parameter) {
-        PipelineSQLBuilder sqlBuilder = PipelineSQLBuilderFactory.getInstance(parameter.getDatabaseType());
-        String logicTableName = parameter.getLogicTableName();
-        String schemaName = parameter.getSchemaName();
-        String uniqueKey = parameter.getUniqueKey().getName();
-        String cacheKey = parameter.getDatabaseType() + "-" + (null != schemaName && DatabaseTypeFactory.getInstance(parameter.getDatabaseType()).isSchemaAvailable()
+    private String getQuerySQL(final DataConsistencyCalculateParameter param) {
+        PipelineSQLBuilder sqlBuilder = PipelineSQLBuilderFactory.getInstance(param.getDatabaseType());
+        String logicTableName = param.getLogicTableName();
+        String schemaName = param.getSchemaName();
+        String uniqueKey = param.getUniqueKey().getName();
+        String cacheKey = param.getDatabaseType() + "-" + (null != schemaName && DatabaseTypeFactory.getInstance(param.getDatabaseType()).isSchemaAvailable()
                 ? schemaName + "." + logicTableName
                 : logicTableName);
-        if (null == parameter.getPreviousCalculatedResult() && null == parameter.getTableCheckPosition()) {
+        if (null == param.getPreviousCalculatedResult() && null == param.getTableCheckPosition()) {
             return firstSQLCache.computeIfAbsent(cacheKey, s -> sqlBuilder.buildChunkedQuerySQL(schemaName, logicTableName, uniqueKey, true));
         }
         return laterSQLCache.computeIfAbsent(cacheKey, s -> sqlBuilder.buildChunkedQuerySQL(schemaName, logicTableName, uniqueKey, false));
diff --git a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/importer/DefaultImporter.java b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/importer/DefaultImporter.java
index 2a60564a4e0..af90af06594 100644
--- a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/importer/DefaultImporter.java
+++ b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/importer/DefaultImporter.java
@@ -105,9 +105,9 @@ public final class DefaultImporter extends AbstractLifecycleExecutor implements
             if (null != records && !records.isEmpty()) {
                 round++;
                 rowCount += records.size();
-                PipelineJobProgressUpdatedParameter updatedParameter = flush(dataSourceManager.getDataSource(importerConfig.getDataSourceConfig()), records);
+                PipelineJobProgressUpdatedParameter updatedParam = flush(dataSourceManager.getDataSource(importerConfig.getDataSourceConfig()), records);
                 channel.ack(records);
-                jobProgressListener.onProgressUpdated(updatedParameter);
+                jobProgressListener.onProgressUpdated(updatedParam);
                 if (0 == round % 50) {
                     log.info("importer write, round={}, rowCount={}", round, rowCount);
                 }
diff --git a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/prepare/PipelineJobPreparerUtils.java b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/prepare/PipelineJobPreparerUtils.java
index 7fb523081eb..e1284c59298 100644
--- a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/prepare/PipelineJobPreparerUtils.java
+++ b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/prepare/PipelineJobPreparerUtils.java
@@ -71,17 +71,17 @@ public final class PipelineJobPreparerUtils {
      * Prepare target schema.
      *
      * @param databaseType database type
-     * @param prepareTargetSchemasParameter prepare target schemas parameter
+     * @param prepareTargetSchemasParam prepare target schemas parameter
      * @throws SQLException if prepare target schema fail
      */
-    public static void prepareTargetSchema(final String databaseType, final PrepareTargetSchemasParameter prepareTargetSchemasParameter) throws SQLException {
+    public static void prepareTargetSchema(final String databaseType, final PrepareTargetSchemasParameter prepareTargetSchemasParam) throws SQLException {
         Optional<DataSourcePreparer> dataSourcePreparer = DataSourcePreparerFactory.getInstance(databaseType);
         if (!dataSourcePreparer.isPresent()) {
             log.info("dataSourcePreparer null, ignore prepare target");
             return;
         }
         long startTimeMillis = System.currentTimeMillis();
-        dataSourcePreparer.get().prepareTargetSchemas(prepareTargetSchemasParameter);
+        dataSourcePreparer.get().prepareTargetSchemas(prepareTargetSchemasParam);
         log.info("prepareTargetSchema cost {} ms", System.currentTimeMillis() - startTimeMillis);
     }
     
@@ -101,17 +101,17 @@ public final class PipelineJobPreparerUtils {
      * Prepare target tables.
      *
      * @param databaseType database type
-     * @param prepareTargetTablesParameter prepare target tables parameter
+     * @param prepareTargetTablesParam prepare target tables parameter
      * @throws SQLException SQL exception
      */
-    public static void prepareTargetTables(final String databaseType, final PrepareTargetTablesParameter prepareTargetTablesParameter) throws SQLException {
+    public static void prepareTargetTables(final String databaseType, final PrepareTargetTablesParameter prepareTargetTablesParam) throws SQLException {
         Optional<DataSourcePreparer> dataSourcePreparer = DataSourcePreparerFactory.getInstance(databaseType);
         if (!dataSourcePreparer.isPresent()) {
             log.info("dataSourcePreparer null, ignore prepare target");
             return;
         }
         long startTimeMillis = System.currentTimeMillis();
-        dataSourcePreparer.get().prepareTargetTables(prepareTargetTablesParameter);
+        dataSourcePreparer.get().prepareTargetTables(prepareTargetTablesParam);
         log.info("prepareTargetTables cost {} ms", System.currentTimeMillis() - startTimeMillis);
     }
     
diff --git a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/prepare/datasource/AbstractDataSourcePreparer.java b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/prepare/datasource/AbstractDataSourcePreparer.java
index fc1b948aa6b..1fde15978c8 100644
--- a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/prepare/datasource/AbstractDataSourcePreparer.java
+++ b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/prepare/datasource/AbstractDataSourcePreparer.java
@@ -53,13 +53,13 @@ public abstract class AbstractDataSourcePreparer implements DataSourcePreparer {
     private static final String[] IGNORE_EXCEPTION_MESSAGE = {"multiple primary keys for table", "already exists"};
     
     @Override
-    public void prepareTargetSchemas(final PrepareTargetSchemasParameter parameter) {
-        DatabaseType targetDatabaseType = parameter.getTargetDatabaseType();
+    public void prepareTargetSchemas(final PrepareTargetSchemasParameter param) {
+        DatabaseType targetDatabaseType = param.getTargetDatabaseType();
         if (!targetDatabaseType.isSchemaAvailable()) {
             log.info("prepareTargetSchemas, target database does not support schema, ignore, targetDatabaseType={}", targetDatabaseType);
             return;
         }
-        CreateTableConfiguration createTableConfig = parameter.getCreateTableConfig();
+        CreateTableConfiguration createTableConfig = param.getCreateTableConfig();
         String defaultSchema = DatabaseTypeEngine.getDefaultSchemaName(targetDatabaseType).orElse(null);
         PipelineSQLBuilder sqlBuilder = PipelineSQLBuilderFactory.getInstance(targetDatabaseType.getType());
         Collection<String> createdSchemaNames = new HashSet<>();
@@ -70,7 +70,7 @@ public abstract class AbstractDataSourcePreparer implements DataSourcePreparer {
             }
             Optional<String> sql = sqlBuilder.buildCreateSchemaSQL(targetSchemaName);
             if (sql.isPresent()) {
-                executeCreateSchema(parameter.getDataSourceManager(), each.getTargetDataSourceConfig(), sql.get());
+                executeCreateSchema(param.getDataSourceManager(), each.getTargetDataSourceConfig(), sql.get());
                 createdSchemaNames.add(targetSchemaName);
             }
         }
diff --git a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/prepare/datasource/DataSourcePreparer.java b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/prepare/datasource/DataSourcePreparer.java
index 501765108aa..a2578594de9 100644
--- a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/prepare/datasource/DataSourcePreparer.java
+++ b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/core/prepare/datasource/DataSourcePreparer.java
@@ -31,16 +31,16 @@ public interface DataSourcePreparer extends TypedSPI {
     /**
      * Prepare target schemas.
      *
-     * @param parameter prepare target schemas parameter
+     * @param param prepare target schemas parameter
      * @throws SQLException if prepare target schema fail
      */
-    void prepareTargetSchemas(PrepareTargetSchemasParameter parameter) throws SQLException;
+    void prepareTargetSchemas(PrepareTargetSchemasParameter param) throws SQLException;
     
     /**
      * Prepare target tables.
      *
-     * @param parameter prepare target tables parameter
+     * @param param prepare target tables parameter
      * @throws SQLException SQL exception
      */
-    void prepareTargetTables(PrepareTargetTablesParameter parameter) throws SQLException;
+    void prepareTargetTables(PrepareTargetTablesParameter param) throws SQLException;
 }
diff --git a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/consistencycheck/ConsistencyCheckJobAPIImpl.java b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/consistencycheck/ConsistencyCheckJobAPIImpl.java
index 60270e3bc0e..82820f2aa5c 100644
--- a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/consistencycheck/ConsistencyCheckJobAPIImpl.java
+++ b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/consistencycheck/ConsistencyCheckJobAPIImpl.java
@@ -76,9 +76,9 @@ public final class ConsistencyCheckJobAPIImpl extends AbstractPipelineJobAPIImpl
     }
     
     @Override
-    public String createJobAndStart(final CreateConsistencyCheckJobParameter parameter) {
+    public String createJobAndStart(final CreateConsistencyCheckJobParameter param) {
         GovernanceRepositoryAPI repositoryAPI = PipelineAPIFactory.getGovernanceRepositoryAPI();
-        String parentJobId = parameter.getJobId();
+        String parentJobId = param.getJobId();
         Optional<String> checkLatestJobId = repositoryAPI.getCheckLatestJobId(parentJobId);
         if (checkLatestJobId.isPresent()) {
             PipelineJobItemProgress progress = getJobItemProgress(checkLatestJobId.get(), 0);
@@ -95,8 +95,8 @@ public final class ConsistencyCheckJobAPIImpl extends AbstractPipelineJobAPIImpl
         YamlConsistencyCheckJobConfiguration yamlConfig = new YamlConsistencyCheckJobConfiguration();
         yamlConfig.setJobId(result);
         yamlConfig.setParentJobId(parentJobId);
-        yamlConfig.setAlgorithmTypeName(parameter.getAlgorithmTypeName());
-        yamlConfig.setAlgorithmProps(parameter.getAlgorithmProps());
+        yamlConfig.setAlgorithmTypeName(param.getAlgorithmTypeName());
+        yamlConfig.setAlgorithmProps(param.getAlgorithmProps());
         start(new YamlConsistencyCheckJobConfigurationSwapper().swapToObject(yamlConfig));
         return result;
     }
diff --git a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/consistencycheck/ConsistencyCheckJobItemContext.java b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/consistencycheck/ConsistencyCheckJobItemContext.java
index 3a47d8489a3..c26c4d6dc39 100644
--- a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/consistencycheck/ConsistencyCheckJobItemContext.java
+++ b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/consistencycheck/ConsistencyCheckJobItemContext.java
@@ -84,8 +84,8 @@ public final class ConsistencyCheckJobItemContext implements PipelineJobItemCont
     }
     
     @Override
-    public void onProgressUpdated(final PipelineJobProgressUpdatedParameter parameter) {
-        checkedRecordsCount.addAndGet(parameter.getProcessedRecordsCount());
+    public void onProgressUpdated(final PipelineJobProgressUpdatedParameter param) {
+        checkedRecordsCount.addAndGet(param.getProcessedRecordsCount());
         PipelineJobProgressPersistService.notifyPersist(jobId, shardingItem);
     }
 }
diff --git a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/migration/MigrationJobAPIImpl.java b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/migration/MigrationJobAPIImpl.java
index 322a40f6750..d1f88d38014 100644
--- a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/migration/MigrationJobAPIImpl.java
+++ b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/migration/MigrationJobAPIImpl.java
@@ -399,39 +399,39 @@ public final class MigrationJobAPIImpl extends AbstractInventoryIncrementalJobAP
     }
     
     @Override
-    public String createJobAndStart(final CreateMigrationJobParameter parameter) {
+    public String createJobAndStart(final CreateMigrationJobParameter param) {
         YamlMigrationJobConfiguration result = new YamlMigrationJobConfiguration();
         Map<String, DataSourceProperties> metaDataDataSource = dataSourcePersistService.load(JobType.MIGRATION);
-        Map<String, Object> sourceDataSourceProps = swapper.swapToMap(metaDataDataSource.get(parameter.getSourceResourceName()));
+        Map<String, Object> sourceDataSourceProps = swapper.swapToMap(metaDataDataSource.get(param.getSourceResourceName()));
         YamlPipelineDataSourceConfiguration sourcePipelineDataSourceConfig = createYamlPipelineDataSourceConfiguration(
                 StandardPipelineDataSourceConfiguration.TYPE, YamlEngine.marshal(sourceDataSourceProps));
         result.setSource(sourcePipelineDataSourceConfig);
-        result.setSourceResourceName(parameter.getSourceResourceName());
+        result.setSourceResourceName(param.getSourceResourceName());
         StandardPipelineDataSourceConfiguration sourceDataSourceConfig = new StandardPipelineDataSourceConfiguration(sourceDataSourceProps);
         DatabaseType sourceDatabaseType = sourceDataSourceConfig.getDatabaseType();
         result.setSourceDatabaseType(sourceDatabaseType.getType());
-        String sourceSchemaName = null == parameter.getSourceSchemaName() && sourceDatabaseType.isSchemaAvailable()
+        String sourceSchemaName = null == param.getSourceSchemaName() && sourceDatabaseType.isSchemaAvailable()
                 ? PipelineSchemaUtil.getDefaultSchema(sourceDataSourceConfig)
-                : parameter.getSourceSchemaName();
+                : param.getSourceSchemaName();
         result.setSourceSchemaName(sourceSchemaName);
-        result.setSourceTableName(parameter.getSourceTableName());
+        result.setSourceTableName(param.getSourceTableName());
         Map<String, Map<String, Object>> targetDataSourceProps = new HashMap<>();
-        ShardingSphereDatabase targetDatabase = PipelineContext.getContextManager().getMetaDataContexts().getMetaData().getDatabase(parameter.getTargetDatabaseName());
+        ShardingSphereDatabase targetDatabase = PipelineContext.getContextManager().getMetaDataContexts().getMetaData().getDatabase(param.getTargetDatabaseName());
         for (Entry<String, DataSource> entry : targetDatabase.getResourceMetaData().getDataSources().entrySet()) {
             Map<String, Object> dataSourceProps = swapper.swapToMap(DataSourcePropertiesCreator.create(entry.getValue()));
             targetDataSourceProps.put(entry.getKey(), dataSourceProps);
         }
-        String targetDatabaseName = parameter.getTargetDatabaseName();
+        String targetDatabaseName = param.getTargetDatabaseName();
         YamlRootConfiguration targetRootConfig = getYamlRootConfiguration(targetDatabaseName, targetDataSourceProps, targetDatabase.getRuleMetaData().getConfigurations());
         PipelineDataSourceConfiguration targetPipelineDataSource = new ShardingSpherePipelineDataSourceConfiguration(targetRootConfig);
         result.setTarget(createYamlPipelineDataSourceConfiguration(targetPipelineDataSource.getType(), YamlEngine.marshal(targetPipelineDataSource.getDataSourceConfiguration())));
         result.setTargetDatabaseType(targetPipelineDataSource.getDatabaseType().getType());
         result.setTargetDatabaseName(targetDatabaseName);
-        result.setTargetTableName(parameter.getTargetTableName());
+        result.setTargetTableName(param.getTargetTableName());
         try (PipelineDataSourceWrapper dataSource = PipelineDataSourceFactory.newInstance(sourceDataSourceConfig)) {
             StandardPipelineTableMetaDataLoader metaDataLoader = new StandardPipelineTableMetaDataLoader(dataSource);
             YamlPipelineColumnMetaData uniqueKeyColumn = new YamlPipelineColumnMetaDataSwapper().swapToYamlConfiguration(
-                    PipelineTableMetaDataUtil.getUniqueKeyColumn(sourceSchemaName, parameter.getSourceTableName(), metaDataLoader));
+                    PipelineTableMetaDataUtil.getUniqueKeyColumn(sourceSchemaName, param.getSourceTableName(), metaDataLoader));
             result.setUniqueKeyColumn(uniqueKeyColumn);
         } catch (final SQLException ex) {
             throw new RuntimeException(ex);
@@ -451,10 +451,10 @@ public final class MigrationJobAPIImpl extends AbstractInventoryIncrementalJobAP
         return result;
     }
     
-    private YamlPipelineDataSourceConfiguration createYamlPipelineDataSourceConfiguration(final String type, final String parameter) {
+    private YamlPipelineDataSourceConfiguration createYamlPipelineDataSourceConfiguration(final String type, final String param) {
         YamlPipelineDataSourceConfiguration result = new YamlPipelineDataSourceConfiguration();
         result.setType(type);
-        result.setParameter(parameter);
+        result.setParameter(param);
         return result;
     }
     
diff --git a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/migration/MigrationJobItemContext.java b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/migration/MigrationJobItemContext.java
index 53b6e94236b..52b8c2c858f 100644
--- a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/migration/MigrationJobItemContext.java
+++ b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/migration/MigrationJobItemContext.java
@@ -132,8 +132,8 @@ public final class MigrationJobItemContext implements InventoryIncrementalJobIte
     }
     
     @Override
-    public void onProgressUpdated(final PipelineJobProgressUpdatedParameter parameter) {
-        processedRecordsCount.addAndGet(parameter.getProcessedRecordsCount());
+    public void onProgressUpdated(final PipelineJobProgressUpdatedParameter param) {
+        processedRecordsCount.addAndGet(param.getProcessedRecordsCount());
         PipelineJobProgressPersistService.notifyPersist(jobId, shardingItem);
     }
     
diff --git a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/migration/MigrationJobPreparer.java b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/migration/MigrationJobPreparer.java
index 32d8e98ca55..122a20d5b77 100644
--- a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/migration/MigrationJobPreparer.java
+++ b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/scenario/migration/MigrationJobPreparer.java
@@ -136,12 +136,11 @@ public final class MigrationJobPreparer {
         MigrationJobConfiguration jobConfig = jobItemContext.getJobConfig();
         String targetDatabaseType = jobConfig.getTargetDatabaseType();
         CreateTableConfiguration createTableConfig = jobItemContext.getTaskConfig().getCreateTableConfig();
-        PrepareTargetSchemasParameter prepareTargetSchemasParameter = new PrepareTargetSchemasParameter(
+        PrepareTargetSchemasParameter prepareTargetSchemasParam = new PrepareTargetSchemasParameter(
                 DatabaseTypeFactory.getInstance(targetDatabaseType), createTableConfig, jobItemContext.getDataSourceManager());
-        PipelineJobPreparerUtils.prepareTargetSchema(targetDatabaseType, prepareTargetSchemasParameter);
+        PipelineJobPreparerUtils.prepareTargetSchema(targetDatabaseType, prepareTargetSchemasParam);
         ShardingSphereSQLParserEngine sqlParserEngine = PipelineJobPreparerUtils.getSQLParserEngine(jobConfig.getTargetDatabaseName());
-        PrepareTargetTablesParameter prepareTargetTablesParameter = new PrepareTargetTablesParameter(createTableConfig, jobItemContext.getDataSourceManager(), sqlParserEngine);
-        PipelineJobPreparerUtils.prepareTargetTables(targetDatabaseType, prepareTargetTablesParameter);
+        PipelineJobPreparerUtils.prepareTargetTables(targetDatabaseType, new PrepareTargetTablesParameter(createTableConfig, jobItemContext.getDataSourceManager(), sqlParserEngine));
     }
     
     private void initInventoryTasks(final MigrationJobItemContext jobItemContext) {
diff --git a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/yaml/consistency/YamlDataConsistencyCheckResultSwapper.java b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/yaml/consistency/YamlDataConsistencyCheckResultSwapper.java
index b2204ae26ae..89ae13291a1 100644
--- a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/yaml/consistency/YamlDataConsistencyCheckResultSwapper.java
+++ b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/yaml/consistency/YamlDataConsistencyCheckResultSwapper.java
@@ -58,10 +58,10 @@ public final class YamlDataConsistencyCheckResultSwapper implements YamlConfigur
     /**
      * Swap string to data consistency check result.
      *
-     * @param parameter parameter
+     * @param param parameter
      * @return data consistency check result
      */
-    public DataConsistencyCheckResult swapToObject(final String parameter) {
-        return swapToObject(YamlEngine.unmarshal(parameter, YamlDataConsistencyCheckResult.class, true));
+    public DataConsistencyCheckResult swapToObject(final String param) {
+        return swapToObject(YamlEngine.unmarshal(param, YamlDataConsistencyCheckResult.class, true));
     }
 }
diff --git a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/yaml/job/YamlConsistencyCheckJobConfigurationSwapper.java b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/yaml/job/YamlConsistencyCheckJobConfigurationSwapper.java
index 30f6ae20ed2..8cb33a3f037 100644
--- a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/yaml/job/YamlConsistencyCheckJobConfigurationSwapper.java
+++ b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/yaml/job/YamlConsistencyCheckJobConfigurationSwapper.java
@@ -44,10 +44,10 @@ public final class YamlConsistencyCheckJobConfigurationSwapper implements YamlCo
     /**
      * Swap to job configuration from text.
      *
-     * @param jobParameter job parameter
+     * @param jobParam job parameter
      * @return job configuration
      */
-    public ConsistencyCheckJobConfiguration swapToObject(final String jobParameter) {
-        return null == jobParameter ? null : swapToObject(YamlEngine.unmarshal(jobParameter, YamlConsistencyCheckJobConfiguration.class, true));
+    public ConsistencyCheckJobConfiguration swapToObject(final String jobParam) {
+        return null == jobParam ? null : swapToObject(YamlEngine.unmarshal(jobParam, YamlConsistencyCheckJobConfiguration.class, true));
     }
 }
diff --git a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/yaml/job/YamlMigrationJobConfigurationSwapper.java b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/yaml/job/YamlMigrationJobConfigurationSwapper.java
index bb3ccedd031..a88359b552c 100644
--- a/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/yaml/job/YamlMigrationJobConfigurationSwapper.java
+++ b/kernel/data-pipeline/core/src/main/java/org/apache/shardingsphere/data/pipeline/yaml/job/YamlMigrationJobConfigurationSwapper.java
@@ -67,10 +67,10 @@ public final class YamlMigrationJobConfigurationSwapper implements YamlConfigura
     /**
      * Swap to migration job configuration from YAML text.
      *
-     * @param jobParameter job parameter YAML text
+     * @param jobParam job parameter YAML text
      * @return migration job configuration
      */
-    public MigrationJobConfiguration swapToObject(final String jobParameter) {
-        return swapToObject(YamlEngine.unmarshal(jobParameter, YamlMigrationJobConfiguration.class, true));
+    public MigrationJobConfiguration swapToObject(final String jobParam) {
+        return swapToObject(YamlEngine.unmarshal(jobParam, YamlMigrationJobConfiguration.class, true));
     }
 }
diff --git a/kernel/data-pipeline/dialect/mysql/src/main/java/org/apache/shardingsphere/data/pipeline/mysql/prepare/datasource/MySQLDataSourcePreparer.java b/kernel/data-pipeline/dialect/mysql/src/main/java/org/apache/shardingsphere/data/pipeline/mysql/prepare/datasource/MySQLDataSourcePreparer.java
index 489775e35ef..974d4defccb 100644
--- a/kernel/data-pipeline/dialect/mysql/src/main/java/org/apache/shardingsphere/data/pipeline/mysql/prepare/datasource/MySQLDataSourcePreparer.java
+++ b/kernel/data-pipeline/dialect/mysql/src/main/java/org/apache/shardingsphere/data/pipeline/mysql/prepare/datasource/MySQLDataSourcePreparer.java
@@ -31,10 +31,10 @@ import java.sql.SQLException;
 public final class MySQLDataSourcePreparer extends AbstractDataSourcePreparer {
     
     @Override
-    public void prepareTargetTables(final PrepareTargetTablesParameter parameter) throws SQLException {
-        PipelineDataSourceManager dataSourceManager = parameter.getDataSourceManager();
-        for (CreateTableEntry each : parameter.getCreateTableConfig().getCreateTableEntries()) {
-            String createTargetTableSQL = getCreateTargetTableSQL(each, dataSourceManager, parameter.getSqlParserEngine());
+    public void prepareTargetTables(final PrepareTargetTablesParameter param) throws SQLException {
+        PipelineDataSourceManager dataSourceManager = param.getDataSourceManager();
+        for (CreateTableEntry each : param.getCreateTableConfig().getCreateTableEntries()) {
+            String createTargetTableSQL = getCreateTargetTableSQL(each, dataSourceManager, param.getSqlParserEngine());
             try (Connection targetConnection = getCachedDataSource(dataSourceManager, each.getTargetDataSourceConfig()).getConnection()) {
                 executeTargetTableSQL(targetConnection, addIfNotExistsForCreateTableSQL(createTargetTableSQL));
             }
diff --git a/kernel/data-pipeline/dialect/opengauss/src/main/java/org/apache/shardingsphere/data/pipeline/opengauss/prepare/datasource/OpenGaussDataSourcePreparer.java b/kernel/data-pipeline/dialect/opengauss/src/main/java/org/apache/shardingsphere/data/pipeline/opengauss/prepare/datasource/OpenGaussDataSourcePreparer.java
index 0677aedd125..889562fe45e 100644
--- a/kernel/data-pipeline/dialect/opengauss/src/main/java/org/apache/shardingsphere/data/pipeline/opengauss/prepare/datasource/OpenGaussDataSourcePreparer.java
+++ b/kernel/data-pipeline/dialect/opengauss/src/main/java/org/apache/shardingsphere/data/pipeline/opengauss/prepare/datasource/OpenGaussDataSourcePreparer.java
@@ -34,10 +34,10 @@ import java.util.stream.Collectors;
 public final class OpenGaussDataSourcePreparer extends AbstractDataSourcePreparer {
     
     @Override
-    public void prepareTargetTables(final PrepareTargetTablesParameter parameter) throws SQLException {
-        PipelineDataSourceManager dataSourceManager = parameter.getDataSourceManager();
-        for (CreateTableEntry each : parameter.getCreateTableConfig().getCreateTableEntries()) {
-            String createTargetTableSQL = getCreateTargetTableSQL(each, dataSourceManager, parameter.getSqlParserEngine());
+    public void prepareTargetTables(final PrepareTargetTablesParameter param) throws SQLException {
+        PipelineDataSourceManager dataSourceManager = param.getDataSourceManager();
+        for (CreateTableEntry each : param.getCreateTableConfig().getCreateTableEntries()) {
+            String createTargetTableSQL = getCreateTargetTableSQL(each, dataSourceManager, param.getSqlParserEngine());
             try (Connection targetConnection = getCachedDataSource(dataSourceManager, each.getTargetDataSourceConfig()).getConnection()) {
                 for (String sql : Splitter.on(";").trimResults().splitToList(createTargetTableSQL).stream().filter(cs -> !Strings.isNullOrEmpty(cs)).collect(Collectors.toList())) {
                     executeTargetTableSQL(targetConnection, addIfNotExistsForCreateTableSQL(sql));
diff --git a/kernel/data-pipeline/dialect/postgresql/src/main/java/org/apache/shardingsphere/data/pipeline/postgresql/prepare/datasource/PostgreSQLDataSourcePreparer.java b/kernel/data-pipeline/dialect/postgresql/src/main/java/org/apache/shardingsphere/data/pipeline/postgresql/prepare/datasource/PostgreSQLDataSourcePreparer.java
index 63b3532c72d..9784a91d457 100644
--- a/kernel/data-pipeline/dialect/postgresql/src/main/java/org/apache/shardingsphere/data/pipeline/postgresql/prepare/datasource/PostgreSQLDataSourcePreparer.java
+++ b/kernel/data-pipeline/dialect/postgresql/src/main/java/org/apache/shardingsphere/data/pipeline/postgresql/prepare/datasource/PostgreSQLDataSourcePreparer.java
@@ -34,10 +34,10 @@ import java.util.stream.Collectors;
 public final class PostgreSQLDataSourcePreparer extends AbstractDataSourcePreparer {
     
     @Override
-    public void prepareTargetTables(final PrepareTargetTablesParameter parameter) throws SQLException {
-        PipelineDataSourceManager dataSourceManager = parameter.getDataSourceManager();
-        for (CreateTableEntry each : parameter.getCreateTableConfig().getCreateTableEntries()) {
-            String createTargetTableSQL = getCreateTargetTableSQL(each, dataSourceManager, parameter.getSqlParserEngine());
+    public void prepareTargetTables(final PrepareTargetTablesParameter param) throws SQLException {
+        PipelineDataSourceManager dataSourceManager = param.getDataSourceManager();
+        for (CreateTableEntry each : param.getCreateTableConfig().getCreateTableEntries()) {
+            String createTargetTableSQL = getCreateTargetTableSQL(each, dataSourceManager, param.getSqlParserEngine());
             try (Connection targetConnection = getCachedDataSource(dataSourceManager, each.getTargetDataSourceConfig()).getConnection()) {
                 for (String sql : Splitter.on(";").trimResults().splitToList(createTargetTableSQL).stream().filter(cs -> !Strings.isNullOrEmpty(cs)).collect(Collectors.toList())) {
                     executeTargetTableSQL(targetConnection, sql);
diff --git a/mode/core/src/main/java/org/apache/shardingsphere/mode/manager/ContextManagerBuilder.java b/mode/core/src/main/java/org/apache/shardingsphere/mode/manager/ContextManagerBuilder.java
index a8cdfacb601..a58d1bdf190 100644
--- a/mode/core/src/main/java/org/apache/shardingsphere/mode/manager/ContextManagerBuilder.java
+++ b/mode/core/src/main/java/org/apache/shardingsphere/mode/manager/ContextManagerBuilder.java
@@ -32,9 +32,9 @@ public interface ContextManagerBuilder extends TypedSPI, RequiredSPI {
     /**
      * Build context manager.
      *
-     * @param parameter context manager builder parameter
+     * @param param context manager builder parameter
      * @return context manager
      * @throws SQLException SQL exception
      */
-    ContextManager build(ContextManagerBuilderParameter parameter) throws SQLException;
+    ContextManager build(ContextManagerBuilderParameter param) throws SQLException;
 }
diff --git a/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/MetaDataContextsFactory.java b/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/MetaDataContextsFactory.java
index f32316edbd1..5298286f7fc 100644
--- a/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/MetaDataContextsFactory.java
+++ b/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/MetaDataContextsFactory.java
@@ -59,33 +59,32 @@ public final class MetaDataContextsFactory {
      * Create meta data contexts.
      *
      * @param persistService persist service
-     * @param parameter database configurations
+     * @param param context manager builder parameter
      * @param instanceContext instance context
      * @return meta data contexts
      * @throws SQLException SQL exception
      */
-    public static MetaDataContexts create(final MetaDataPersistService persistService, final ContextManagerBuilderParameter parameter,
-                                          final InstanceContext instanceContext) throws SQLException {
-        return create(persistService, parameter, instanceContext, Collections.emptyMap());
+    public static MetaDataContexts create(final MetaDataPersistService persistService, final ContextManagerBuilderParameter param, final InstanceContext instanceContext) throws SQLException {
+        return create(persistService, param, instanceContext, Collections.emptyMap());
     }
     
     /**
      * Create meta data contexts.
      *
      * @param persistService persist service
-     * @param parameter database configurations
+     * @param param context manager builder parameter
      * @param instanceContext instance context
      * @param storageNodes storage nodes
      * @return meta data contexts
      * @throws SQLException SQL exception
      */
-    public static MetaDataContexts create(final MetaDataPersistService persistService, final ContextManagerBuilderParameter parameter,
+    public static MetaDataContexts create(final MetaDataPersistService persistService, final ContextManagerBuilderParameter param,
                                           final InstanceContext instanceContext, final Map<String, StorageNodeDataSource> storageNodes) throws SQLException {
         Collection<String> databaseNames = instanceContext.getInstance().getMetaData() instanceof JDBCInstanceMetaData
-                ? parameter.getDatabaseConfigs().keySet()
+                ? param.getDatabaseConfigs().keySet()
                 : persistService.getDatabaseMetaDataService().loadAllDatabaseNames();
-        Map<String, DatabaseConfiguration> effectiveDatabaseConfigs = createEffectiveDatabaseConfigurations(databaseNames, parameter.getDatabaseConfigs(), persistService);
-        checkDataSourceStates(effectiveDatabaseConfigs, storageNodes, parameter.isForce());
+        Map<String, DatabaseConfiguration> effectiveDatabaseConfigs = createEffectiveDatabaseConfigurations(databaseNames, param.getDatabaseConfigs(), persistService);
+        checkDataSourceStates(effectiveDatabaseConfigs, storageNodes, param.isForce());
         Collection<RuleConfiguration> globalRuleConfigs = persistService.getGlobalRuleService().load();
         ConfigurationProperties props = new ConfigurationProperties(persistService.getPropsService().load());
         Map<String, ShardingSphereDatabase> databases = ShardingSphereDatabasesFactory.create(effectiveDatabaseConfigs, props, instanceContext);
diff --git a/mode/core/src/test/java/org/apache/shardingsphere/mode/manager/ContextManagerBuilderParameterTest.java b/mode/core/src/test/java/org/apache/shardingsphere/mode/manager/ContextManagerBuilderParameterTest.java
index fc2eb974e6b..9dfade39828 100644
--- a/mode/core/src/test/java/org/apache/shardingsphere/mode/manager/ContextManagerBuilderParameterTest.java
+++ b/mode/core/src/test/java/org/apache/shardingsphere/mode/manager/ContextManagerBuilderParameterTest.java
@@ -84,16 +84,16 @@ public final class ContextManagerBuilderParameterTest {
     
     @Test
     public void assertGetDefaultModeConfiguration() {
-        ContextManagerBuilderParameter parameter = new ContextManagerBuilderParameter(null, Collections.emptyMap(), Collections.emptyList(), new Properties(), null, null, false);
-        assertThat(parameter.getModeConfiguration().getType(), is("Standalone"));
-        assertNull(parameter.getModeConfiguration().getRepository());
+        ContextManagerBuilderParameter param = new ContextManagerBuilderParameter(null, Collections.emptyMap(), Collections.emptyList(), new Properties(), null, null, false);
+        assertThat(param.getModeConfiguration().getType(), is("Standalone"));
+        assertNull(param.getModeConfiguration().getRepository());
     }
     
     @Test
     public void assertGetModeConfiguration() {
         ModeConfiguration modeConfig = new ModeConfiguration("Cluster", mock(PersistRepositoryConfiguration.class));
-        ContextManagerBuilderParameter parameter = new ContextManagerBuilderParameter(modeConfig, Collections.emptyMap(), Collections.emptyList(), new Properties(), null, null, false);
-        assertThat(parameter.getModeConfiguration().getType(), is("Cluster"));
-        assertNotNull(parameter.getModeConfiguration().getRepository());
+        ContextManagerBuilderParameter param = new ContextManagerBuilderParameter(modeConfig, Collections.emptyMap(), Collections.emptyList(), new Properties(), null, null, false);
+        assertThat(param.getModeConfiguration().getType(), is("Cluster"));
+        assertNotNull(param.getModeConfiguration().getRepository());
     }
 }
diff --git a/mode/core/src/test/java/org/apache/shardingsphere/mode/manager/fixture/ContextManagerBuilderFixture.java b/mode/core/src/test/java/org/apache/shardingsphere/mode/manager/fixture/ContextManagerBuilderFixture.java
index 8589bc783d6..198170b64e5 100644
--- a/mode/core/src/test/java/org/apache/shardingsphere/mode/manager/fixture/ContextManagerBuilderFixture.java
+++ b/mode/core/src/test/java/org/apache/shardingsphere/mode/manager/fixture/ContextManagerBuilderFixture.java
@@ -26,7 +26,7 @@ import static org.mockito.Mockito.mock;
 public final class ContextManagerBuilderFixture implements ContextManagerBuilder {
     
     @Override
-    public ContextManager build(final ContextManagerBuilderParameter parameter) {
+    public ContextManager build(final ContextManagerBuilderParameter param) {
         return mock(ContextManager.class);
     }
     
diff --git a/mode/type/cluster/core/src/main/java/org/apache/shardingsphere/mode/manager/cluster/ClusterContextManagerBuilder.java b/mode/type/cluster/core/src/main/java/org/apache/shardingsphere/mode/manager/cluster/ClusterContextManagerBuilder.java
index 0e47566a4f4..ce629315670 100644
--- a/mode/type/cluster/core/src/main/java/org/apache/shardingsphere/mode/manager/cluster/ClusterContextManagerBuilder.java
+++ b/mode/type/cluster/core/src/main/java/org/apache/shardingsphere/mode/manager/cluster/ClusterContextManagerBuilder.java
@@ -45,32 +45,32 @@ import java.util.Map.Entry;
 public final class ClusterContextManagerBuilder implements ContextManagerBuilder {
     
     @Override
-    public ContextManager build(final ContextManagerBuilderParameter parameter) throws SQLException {
-        ClusterPersistRepository repository = ClusterPersistRepositoryFactory.getInstance((ClusterPersistRepositoryConfiguration) parameter.getModeConfiguration().getRepository());
+    public ContextManager build(final ContextManagerBuilderParameter param) throws SQLException {
+        ClusterPersistRepository repository = ClusterPersistRepositoryFactory.getInstance((ClusterPersistRepositoryConfiguration) param.getModeConfiguration().getRepository());
         MetaDataPersistService persistService = new MetaDataPersistService(repository);
-        persistConfigurations(persistService, parameter);
-        RegistryCenter registryCenter = new RegistryCenter(repository, new EventBusContext(), parameter.getInstanceMetaData(), parameter.getDatabaseConfigs());
-        InstanceContext instanceContext = buildInstanceContext(registryCenter, parameter);
+        persistConfigurations(persistService, param);
+        RegistryCenter registryCenter = new RegistryCenter(repository, new EventBusContext(), param.getInstanceMetaData(), param.getDatabaseConfigs());
+        InstanceContext instanceContext = buildInstanceContext(registryCenter, param);
         ClusterPersistRepository persistRepository = registryCenter.getRepository();
         if (persistRepository instanceof InstanceContextAware) {
             ((InstanceContextAware) persistRepository).setInstanceContext(instanceContext);
         }
-        MetaDataContexts metaDataContexts = MetaDataContextsFactory.create(persistService, parameter, instanceContext, registryCenter.getStorageNodeStatusService().loadStorageNodes());
+        MetaDataContexts metaDataContexts = MetaDataContextsFactory.create(persistService, param, instanceContext, registryCenter.getStorageNodeStatusService().loadStorageNodes());
         persistMetaData(metaDataContexts);
         ContextManager result = new ContextManager(metaDataContexts, instanceContext);
-        registerOnline(persistService, registryCenter, parameter, result);
+        registerOnline(persistService, registryCenter, param, result);
         return result;
     }
     
-    private void persistConfigurations(final MetaDataPersistService persistService, final ContextManagerBuilderParameter parameter) {
-        if (!parameter.isEmpty()) {
-            persistService.persistConfigurations(parameter.getDatabaseConfigs(), parameter.getGlobalRuleConfigs(), parameter.getProps());
+    private void persistConfigurations(final MetaDataPersistService persistService, final ContextManagerBuilderParameter param) {
+        if (!param.isEmpty()) {
+            persistService.persistConfigurations(param.getDatabaseConfigs(), param.getGlobalRuleConfigs(), param.getProps());
         }
     }
     
-    private InstanceContext buildInstanceContext(final RegistryCenter registryCenter, final ContextManagerBuilderParameter parameter) {
-        return new InstanceContext(new ComputeNodeInstance(parameter.getInstanceMetaData()), new ClusterWorkerIdGenerator(registryCenter, parameter.getInstanceMetaData()),
-                parameter.getModeConfiguration(), new GlobalLockContext(registryCenter.getGlobalLockPersistService()), registryCenter.getEventBusContext());
+    private InstanceContext buildInstanceContext(final RegistryCenter registryCenter, final ContextManagerBuilderParameter param) {
+        return new InstanceContext(new ComputeNodeInstance(param.getInstanceMetaData()), new ClusterWorkerIdGenerator(registryCenter, param.getInstanceMetaData()),
+                param.getModeConfiguration(), new GlobalLockContext(registryCenter.getGlobalLockPersistService()), registryCenter.getEventBusContext());
     }
     
     private void persistMetaData(final MetaDataContexts metaDataContexts) {
@@ -82,9 +82,8 @@ public final class ClusterContextManagerBuilder implements ContextManagerBuilder
         }
     }
     
-    private void registerOnline(final MetaDataPersistService persistService, final RegistryCenter registryCenter,
-                                final ContextManagerBuilderParameter parameter, final ContextManager contextManager) {
-        contextManager.getInstanceContext().getInstance().setLabels(parameter.getLabels());
+    private void registerOnline(final MetaDataPersistService persistService, final RegistryCenter registryCenter, final ContextManagerBuilderParameter param, final ContextManager contextManager) {
+        contextManager.getInstanceContext().getInstance().setLabels(param.getLabels());
         contextManager.getInstanceContext().getAllClusterInstances().addAll(registryCenter.getComputeNodeStatusService().loadAllComputeNodeInstances());
         new ContextManagerSubscriberFacade(persistService, registryCenter, contextManager);
         registryCenter.onlineInstance(contextManager.getInstanceContext().getInstance());
diff --git a/mode/type/standalone/core/src/main/java/org/apache/shardingsphere/mode/manager/standalone/StandaloneContextManagerBuilder.java b/mode/type/standalone/core/src/main/java/org/apache/shardingsphere/mode/manager/standalone/StandaloneContextManagerBuilder.java
index a2ee6f34aab..7b705b9dbed 100644
--- a/mode/type/standalone/core/src/main/java/org/apache/shardingsphere/mode/manager/standalone/StandaloneContextManagerBuilder.java
+++ b/mode/type/standalone/core/src/main/java/org/apache/shardingsphere/mode/manager/standalone/StandaloneContextManagerBuilder.java
@@ -40,25 +40,25 @@ import java.sql.SQLException;
 public final class StandaloneContextManagerBuilder implements ContextManagerBuilder {
     
     @Override
-    public ContextManager build(final ContextManagerBuilderParameter parameter) throws SQLException {
-        StandalonePersistRepository repository = StandalonePersistRepositoryFactory.getInstance(parameter.getModeConfiguration().getRepository());
+    public ContextManager build(final ContextManagerBuilderParameter param) throws SQLException {
+        StandalonePersistRepository repository = StandalonePersistRepositoryFactory.getInstance(param.getModeConfiguration().getRepository());
         MetaDataPersistService persistService = new MetaDataPersistService(repository);
-        persistConfigurations(persistService, parameter);
-        InstanceContext instanceContext = buildInstanceContext(parameter);
+        persistConfigurations(persistService, param);
+        InstanceContext instanceContext = buildInstanceContext(param);
         new ProcessStandaloneSubscriber(instanceContext.getEventBusContext());
-        MetaDataContexts metaDataContexts = MetaDataContextsFactory.create(persistService, parameter, instanceContext);
+        MetaDataContexts metaDataContexts = MetaDataContextsFactory.create(persistService, param, instanceContext);
         return new ContextManager(metaDataContexts, instanceContext);
     }
     
-    private void persistConfigurations(final MetaDataPersistService persistService, final ContextManagerBuilderParameter parameter) {
-        if (!parameter.isEmpty()) {
-            persistService.persistConfigurations(parameter.getDatabaseConfigs(), parameter.getGlobalRuleConfigs(), parameter.getProps());
+    private void persistConfigurations(final MetaDataPersistService persistService, final ContextManagerBuilderParameter param) {
+        if (!param.isEmpty()) {
+            persistService.persistConfigurations(param.getDatabaseConfigs(), param.getGlobalRuleConfigs(), param.getProps());
         }
     }
     
-    private InstanceContext buildInstanceContext(final ContextManagerBuilderParameter parameter) {
-        return new InstanceContext(new ComputeNodeInstance(parameter.getInstanceMetaData()),
-                new StandaloneWorkerIdGenerator(), parameter.getModeConfiguration(), new GlobalLockContext(null), new EventBusContext());
+    private InstanceContext buildInstanceContext(final ContextManagerBuilderParameter param) {
+        return new InstanceContext(new ComputeNodeInstance(param.getInstanceMetaData()),
+                new StandaloneWorkerIdGenerator(), param.getModeConfiguration(), new GlobalLockContext(null), new EventBusContext());
     }
     
     @Override
diff --git a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/communication/jdbc/statement/JDBCBackendStatement.java b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/communication/jdbc/statement/JDBCBackendStatement.java
index be8ee0d48c7..f19a016f363 100644
--- a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/communication/jdbc/statement/JDBCBackendStatement.java
+++ b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/communication/jdbc/statement/JDBCBackendStatement.java
@@ -50,16 +50,16 @@ public final class JDBCBackendStatement implements ExecutorJDBCStatementManager
     public Statement createStorageResource(final ExecutionUnit executionUnit, final Connection connection, final ConnectionMode connectionMode, final StatementOption option,
                                            final DatabaseType databaseType) throws SQLException {
         String sql = executionUnit.getSqlUnit().getSql();
-        List<Object> parameters = executionUnit.getSqlUnit().getParameters();
+        List<Object> params = executionUnit.getSqlUnit().getParameters();
         PreparedStatement result = option.isReturnGeneratedKeys()
                 ? connection.prepareStatement(executionUnit.getSqlUnit().getSql(), Statement.RETURN_GENERATED_KEYS)
                 : connection.prepareStatement(sql);
-        for (int i = 0; i < parameters.size(); i++) {
-            Object parameter = parameters.get(i);
-            if (parameter instanceof TypeUnspecifiedSQLParameter) {
-                result.setObject(i + 1, parameter, Types.OTHER);
+        for (int i = 0; i < params.size(); i++) {
+            Object param = params.get(i);
+            if (param instanceof TypeUnspecifiedSQLParameter) {
+                result.setObject(i + 1, param, Types.OTHER);
             } else {
-                result.setObject(i + 1, parameter);
+                result.setObject(i + 1, param);
             }
         }
         if (ConnectionMode.MEMORY_STRICTLY == connectionMode) {
diff --git a/proxy/bootstrap/src/main/java/org/apache/shardingsphere/proxy/initializer/BootstrapInitializer.java b/proxy/bootstrap/src/main/java/org/apache/shardingsphere/proxy/initializer/BootstrapInitializer.java
index 44a942f19d1..56c21583b59 100644
--- a/proxy/bootstrap/src/main/java/org/apache/shardingsphere/proxy/initializer/BootstrapInitializer.java
+++ b/proxy/bootstrap/src/main/java/org/apache/shardingsphere/proxy/initializer/BootstrapInitializer.java
@@ -62,10 +62,10 @@ public final class BootstrapInitializer {
     }
     
     private ContextManager createContextManager(final ProxyConfiguration proxyConfig, final ModeConfiguration modeConfig, final int port, final boolean force) throws SQLException {
-        ContextManagerBuilderParameter parameter = new ContextManagerBuilderParameter(modeConfig, proxyConfig.getDatabaseConfigurations(),
+        ContextManagerBuilderParameter param = new ContextManagerBuilderParameter(modeConfig, proxyConfig.getDatabaseConfigurations(),
                 proxyConfig.getGlobalConfiguration().getRules(), proxyConfig.getGlobalConfiguration().getProperties(), proxyConfig.getGlobalConfiguration().getLabels(),
                 createInstanceMetaData(proxyConfig, port), force);
-        return ContextManagerBuilderFactory.getInstance(modeConfig).build(parameter);
+        return ContextManagerBuilderFactory.getInstance(modeConfig).build(param);
     }
     
     private InstanceMetaData createInstanceMetaData(final ProxyConfiguration proxyConfig, final int port) {
diff --git a/proxy/frontend/postgresql/src/main/java/org/apache/shardingsphere/proxy/frontend/postgresql/command/query/extended/PostgreSQLBatchedStatementsExecutor.java b/proxy/frontend/postgresql/src/main/java/org/apache/shardingsphere/proxy/frontend/postgresql/command/query/extended/PostgreSQLBatchedStatementsExecutor.java
index c9b8741d282..641c2264b5a 100644
--- a/proxy/frontend/postgresql/src/main/java/org/apache/shardingsphere/proxy/frontend/postgresql/command/query/extended/PostgreSQLBatchedStatementsExecutor.java
+++ b/proxy/frontend/postgresql/src/main/java/org/apache/shardingsphere/proxy/frontend/postgresql/command/query/extended/PostgreSQLBatchedStatementsExecutor.java
@@ -77,7 +77,7 @@ public final class PostgreSQLBatchedStatementsExecutor {
     
     private final PostgreSQLServerPreparedStatement preparedStatement;
     
-    private final Map<ExecutionUnit, List<List<Object>>> executionUnitParameters = new HashMap<>();
+    private final Map<ExecutionUnit, List<List<Object>>> executionUnitParams = new HashMap<>();
     
     private final ExecutionContext anyExecutionContext;
     
@@ -92,11 +92,11 @@ public final class PostgreSQLBatchedStatementsExecutor {
         SQLStatementContext<?> sqlStatementContext = null;
         ExecutionContext executionContext = null;
         if (parameterSetsIterator.hasNext()) {
-            List<Object> firstGroupOfParameter = parameterSetsIterator.next();
-            sqlStatementContext = createSQLStatementContext(firstGroupOfParameter);
-            executionContext = createExecutionContext(createQueryContext(sqlStatementContext, firstGroupOfParameter));
+            List<Object> firstGroupOfParam = parameterSetsIterator.next();
+            sqlStatementContext = createSQLStatementContext(firstGroupOfParam);
+            executionContext = createExecutionContext(createQueryContext(sqlStatementContext, firstGroupOfParam));
             for (ExecutionUnit each : executionContext.getExecutionUnits()) {
-                executionUnitParameters.computeIfAbsent(each, unused -> new LinkedList<>()).add(each.getSqlUnit().getParameters());
+                executionUnitParams.computeIfAbsent(each, unused -> new LinkedList<>()).add(each.getSqlUnit().getParameters());
             }
         }
         anyExecutionContext = executionContext;
@@ -110,13 +110,13 @@ public final class PostgreSQLBatchedStatementsExecutor {
     
     private void prepareForRestOfParametersSet(final Iterator<List<Object>> paramSetsIterator, final SQLStatementContext<?> sqlStatementContext) {
         while (paramSetsIterator.hasNext()) {
-            List<Object> eachGroupOfParameter = paramSetsIterator.next();
+            List<Object> eachGroupOfParam = paramSetsIterator.next();
             if (sqlStatementContext instanceof ParameterAware) {
-                ((ParameterAware) sqlStatementContext).setUpParameters(eachGroupOfParameter);
+                ((ParameterAware) sqlStatementContext).setUpParameters(eachGroupOfParam);
             }
-            ExecutionContext eachExecutionContext = createExecutionContext(createQueryContext(sqlStatementContext, eachGroupOfParameter));
+            ExecutionContext eachExecutionContext = createExecutionContext(createQueryContext(sqlStatementContext, eachGroupOfParam));
             for (ExecutionUnit each : eachExecutionContext.getExecutionUnits()) {
-                executionUnitParameters.computeIfAbsent(each, unused -> new LinkedList<>()).add(each.getSqlUnit().getParameters());
+                executionUnitParams.computeIfAbsent(each, unused -> new LinkedList<>()).add(each.getSqlUnit().getParameters());
             }
         }
     }
@@ -151,7 +151,7 @@ public final class PostgreSQLBatchedStatementsExecutor {
                 metaDataContexts.getMetaData().getProps().<Integer>getValue(ConfigurationPropertyKey.MAX_CONNECTIONS_SIZE_PER_QUERY),
                 (JDBCBackendConnection) connectionSession.getBackendConnection(), (JDBCBackendStatement) connectionSession.getStatementManager(),
                 new StatementOption(false), rules, metaDataContexts.getMetaData().getDatabase(connectionSession.getDatabaseName()).getResourceMetaData().getStorageTypes());
-        executionGroupContext = prepareEngine.prepare(anyExecutionContext.getRouteContext(), executionUnitParameters.keySet());
+        executionGroupContext = prepareEngine.prepare(anyExecutionContext.getRouteContext(), executionUnitParams.keySet());
         for (ExecutionGroup<JDBCExecutionUnit> eachGroup : executionGroupContext.getInputGroups()) {
             for (JDBCExecutionUnit each : eachGroup.getInputs()) {
                 prepareJDBCExecutionUnit(each);
@@ -161,15 +161,15 @@ public final class PostgreSQLBatchedStatementsExecutor {
     
     private void prepareJDBCExecutionUnit(final JDBCExecutionUnit jdbcExecutionUnit) throws SQLException {
         PreparedStatement preparedStatement = (PreparedStatement) jdbcExecutionUnit.getStorageResource();
-        for (List<Object> eachGroupParameter : executionUnitParameters.getOrDefault(jdbcExecutionUnit.getExecutionUnit(), Collections.emptyList())) {
-            ListIterator<Object> parametersIterator = eachGroupParameter.listIterator();
-            while (parametersIterator.hasNext()) {
-                int parameterIndex = parametersIterator.nextIndex() + 1;
-                Object value = parametersIterator.next();
+        for (List<Object> eachGroupParam : executionUnitParams.getOrDefault(jdbcExecutionUnit.getExecutionUnit(), Collections.emptyList())) {
+            ListIterator<Object> params = eachGroupParam.listIterator();
+            while (params.hasNext()) {
+                int paramIndex = params.nextIndex() + 1;
+                Object value = params.next();
                 if (value instanceof PostgreSQLTypeUnspecifiedSQLParameter) {
                     value = value.toString();
                 }
-                preparedStatement.setObject(parameterIndex, value);
+                preparedStatement.setObject(paramIndex, value);
             }
             preparedStatement.addBatch();
         }
diff --git a/proxy/frontend/postgresql/src/test/java/org/apache/shardingsphere/proxy/frontend/postgresql/command/query/extended/PostgreSQLBatchedStatementsExecutorTest.java b/proxy/frontend/postgresql/src/test/java/org/apache/shardingsphere/proxy/frontend/postgresql/command/query/extended/PostgreSQLBatchedStatementsExecutorTest.java
index cb1f34cbe17..0ee7652967b 100644
--- a/proxy/frontend/postgresql/src/test/java/org/apache/shardingsphere/proxy/frontend/postgresql/command/query/extended/PostgreSQLBatchedStatementsExecutorTest.java
+++ b/proxy/frontend/postgresql/src/test/java/org/apache/shardingsphere/proxy/frontend/postgresql/command/query/extended/PostgreSQLBatchedStatementsExecutorTest.java
@@ -134,7 +134,7 @@ public final class PostgreSQLBatchedStatementsExecutorTest extends ProxyContextR
     @SuppressWarnings("unchecked")
     @SneakyThrows(ReflectiveOperationException.class)
     private void prepareExecutionUnitParameters(final PostgreSQLBatchedStatementsExecutor target, final List<List<Object>> parameterSets) {
-        Field executionUnitParametersField = PostgreSQLBatchedStatementsExecutor.class.getDeclaredField("executionUnitParameters");
+        Field executionUnitParametersField = PostgreSQLBatchedStatementsExecutor.class.getDeclaredField("executionUnitParams");
         executionUnitParametersField.setAccessible(true);
         Map<ExecutionUnit, List<List<Object>>> map = (Map<ExecutionUnit, List<List<Object>>>) executionUnitParametersField.get(target);
         map.replaceAll((k, v) -> parameterSets);
diff --git a/sql-parser/dialect/opengauss/src/main/java/org/apache/shardingsphere/sql/parser/opengauss/visitor/statement/impl/OpenGaussStatementSQLVisitor.java b/sql-parser/dialect/opengauss/src/main/java/org/apache/shardingsphere/sql/parser/opengauss/visitor/statement/impl/OpenGaussStatementSQLVisitor.java
index 5dc4adccdfb..d11bc2fe488 100644
--- a/sql-parser/dialect/opengauss/src/main/java/org/apache/shardingsphere/sql/parser/opengauss/visitor/statement/impl/OpenGaussStatementSQLVisitor.java
+++ b/sql-parser/dialect/opengauss/src/main/java/org/apache/shardingsphere/sql/parser/opengauss/visitor/statement/impl/OpenGaussStatementSQLVisitor.java
@@ -205,11 +205,11 @@ public abstract class OpenGaussStatementSQLVisitor extends OpenGaussStatementBas
     @Override
     public final ASTNode visitParameterMarker(final ParameterMarkerContext ctx) {
         if (null != ctx.DOLLAR_()) {
-            int parameterIndex = ((NumberLiteralValue) visit(ctx.numberLiterals())).getValue().intValue();
-            if (parameterIndex > currentParameterIndex) {
-                currentParameterIndex = parameterIndex;
+            int paramIndex = ((NumberLiteralValue) visit(ctx.numberLiterals())).getValue().intValue();
+            if (paramIndex > currentParameterIndex) {
+                currentParameterIndex = paramIndex;
             }
-            return new ParameterMarkerValue(parameterIndex - 1, ParameterMarkerType.DOLLAR);
+            return new ParameterMarkerValue(paramIndex - 1, ParameterMarkerType.DOLLAR);
         }
         return new ParameterMarkerValue(currentParameterIndex++, ParameterMarkerType.QUESTION);
     }
diff --git a/sql-parser/dialect/postgresql/src/main/java/org/apache/shardingsphere/sql/parser/postgresql/visitor/statement/impl/PostgreSQLStatementSQLVisitor.java b/sql-parser/dialect/postgresql/src/main/java/org/apache/shardingsphere/sql/parser/postgresql/visitor/statement/impl/PostgreSQLStatementSQLVisitor.java
index 58dd12ba80d..71b89a98039 100644
--- a/sql-parser/dialect/postgresql/src/main/java/org/apache/shardingsphere/sql/parser/postgresql/visitor/statement/impl/PostgreSQLStatementSQLVisitor.java
+++ b/sql-parser/dialect/postgresql/src/main/java/org/apache/shardingsphere/sql/parser/postgresql/visitor/statement/impl/PostgreSQLStatementSQLVisitor.java
@@ -207,11 +207,11 @@ public abstract class PostgreSQLStatementSQLVisitor extends PostgreSQLStatementP
         if (null == ctx.DOLLAR_()) {
             return new ParameterMarkerValue(currentParameterIndex++, ParameterMarkerType.QUESTION);
         }
-        int parameterIndex = ((NumberLiteralValue) visit(ctx.numberLiterals())).getValue().intValue();
-        if (parameterIndex > currentParameterIndex) {
-            currentParameterIndex = parameterIndex;
+        int paramIndex = ((NumberLiteralValue) visit(ctx.numberLiterals())).getValue().intValue();
+        if (paramIndex > currentParameterIndex) {
+            currentParameterIndex = paramIndex;
         }
-        return new ParameterMarkerValue(parameterIndex - 1, ParameterMarkerType.DOLLAR);
+        return new ParameterMarkerValue(paramIndex - 1, ParameterMarkerType.DOLLAR);
     }
     
     @Override
diff --git a/sql-parser/statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/common/segment/dml/pagination/limit/ParameterMarkerLimitValueSegment.java b/sql-parser/statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/common/segment/dml/pagination/limit/ParameterMarkerLimitValueSegment.java
index 9e7d4ea0dce..08bbeac7d88 100644
--- a/sql-parser/statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/common/segment/dml/pagination/limit/ParameterMarkerLimitValueSegment.java
+++ b/sql-parser/statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/common/segment/dml/pagination/limit/ParameterMarkerLimitValueSegment.java
@@ -30,8 +30,8 @@ public final class ParameterMarkerLimitValueSegment extends LimitValueSegment im
     
     private final int parameterIndex;
     
-    public ParameterMarkerLimitValueSegment(final int startIndex, final int stopIndex, final int parameterIndex) {
+    public ParameterMarkerLimitValueSegment(final int startIndex, final int stopIndex, final int paramIndex) {
         super(startIndex, stopIndex);
-        this.parameterIndex = parameterIndex;
+        this.parameterIndex = paramIndex;
     }
 }
diff --git a/sql-parser/statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/common/segment/dml/pagination/rownum/ParameterMarkerRowNumberValueSegment.java b/sql-parser/statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/common/segment/dml/pagination/rownum/ParameterMarkerRowNumberValueSegment.java
index e8acec802f2..ac5bee31438 100644
--- a/sql-parser/statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/common/segment/dml/pagination/rownum/ParameterMarkerRowNumberValueSegment.java
+++ b/sql-parser/statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/common/segment/dml/pagination/rownum/ParameterMarkerRowNumberValueSegment.java
@@ -30,8 +30,8 @@ public final class ParameterMarkerRowNumberValueSegment extends RowNumberValueSe
     
     private final int parameterIndex;
     
-    public ParameterMarkerRowNumberValueSegment(final int startIndex, final int stopIndex, final int parameterIndex, final boolean boundOpened) {
+    public ParameterMarkerRowNumberValueSegment(final int startIndex, final int stopIndex, final int paramIndex, final boolean boundOpened) {
         super(startIndex, stopIndex, boundOpened);
-        this.parameterIndex = parameterIndex;
+        this.parameterIndex = paramIndex;
     }
 }
diff --git a/sql-parser/statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/dialect/statement/opengauss/dal/OpenGaussResetParameterStatement.java b/sql-parser/statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/dialect/statement/opengauss/dal/OpenGaussResetParameterStatement.java
index 346dedc5fbc..2bf59a45121 100644
--- a/sql-parser/statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/dialect/statement/opengauss/dal/OpenGaussResetParameterStatement.java
+++ b/sql-parser/statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/dialect/statement/opengauss/dal/OpenGaussResetParameterStatement.java
@@ -27,7 +27,7 @@ import org.apache.shardingsphere.sql.parser.sql.dialect.statement.opengauss.Open
 @ToString(callSuper = true)
 public final class OpenGaussResetParameterStatement extends ResetParameterStatement implements OpenGaussStatement {
     
-    public OpenGaussResetParameterStatement(final String configurationParameter) {
-        super(configurationParameter);
+    public OpenGaussResetParameterStatement(final String configurationParam) {
+        super(configurationParam);
     }
 }
diff --git a/sql-parser/statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/dialect/statement/postgresql/dal/PostgreSQLResetParameterStatement.java b/sql-parser/statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/dialect/statement/postgresql/dal/PostgreSQLResetParameterStatement.java
index cc4779bfb7f..39d0ad6a0fe 100644
--- a/sql-parser/statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/dialect/statement/postgresql/dal/PostgreSQLResetParameterStatement.java
+++ b/sql-parser/statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/dialect/statement/postgresql/dal/PostgreSQLResetParameterStatement.java
@@ -27,7 +27,7 @@ import org.apache.shardingsphere.sql.parser.sql.dialect.statement.postgresql.Pos
 @ToString(callSuper = true)
 public final class PostgreSQLResetParameterStatement extends ResetParameterStatement implements PostgreSQLStatement {
     
-    public PostgreSQLResetParameterStatement(final String configurationParameter) {
-        super(configurationParameter);
+    public PostgreSQLResetParameterStatement(final String configurationParam) {
+        super(configurationParam);
     }
 }
diff --git a/test/integration-test/test-suite/src/test/java/org/apache/shardingsphere/test/integration/cases/assertion/IntegrationTestCaseAssertion.java b/test/integration-test/test-suite/src/test/java/org/apache/shardingsphere/test/integration/cases/assertion/IntegrationTestCaseAssertion.java
index c50e6a96c39..3714e0b8b69 100644
--- a/test/integration-test/test-suite/src/test/java/org/apache/shardingsphere/test/integration/cases/assertion/IntegrationTestCaseAssertion.java
+++ b/test/integration-test/test-suite/src/test/java/org/apache/shardingsphere/test/integration/cases/assertion/IntegrationTestCaseAssertion.java
@@ -78,20 +78,20 @@ public final class IntegrationTestCaseAssertion {
         return result;
     }
     
-    private List<String> parse(final String parameter) {
-        List<String> result = Splitter.on(":").trimResults().splitToList(parameter);
+    private List<String> parse(final String param) {
+        List<String> result = Splitter.on(":").trimResults().splitToList(param);
         int size = result.size();
         if (size <= 2) {
             return result;
         }
-        return parseComplex(parameter);
+        return parseComplex(param);
     }
     
-    private List<String> parseComplex(final String parameter) {
+    private List<String> parseComplex(final String param) {
         List<String> result = new ArrayList<>(2);
-        int index = parameter.lastIndexOf(":");
-        result.add(parameter.substring(0, index));
-        result.add(parameter.substring(index + 1));
+        int index = param.lastIndexOf(":");
+        result.add(param.substring(0, index));
+        result.add(param.substring(index + 1));
         return result;
     }
 }
diff --git a/test/integration-test/test-suite/src/test/java/org/apache/shardingsphere/test/integration/engine/SingleITCase.java b/test/integration-test/test-suite/src/test/java/org/apache/shardingsphere/test/integration/engine/SingleITCase.java
index bc987801b73..a5480d1d4ab 100644
--- a/test/integration-test/test-suite/src/test/java/org/apache/shardingsphere/test/integration/engine/SingleITCase.java
+++ b/test/integration-test/test-suite/src/test/java/org/apache/shardingsphere/test/integration/engine/SingleITCase.java
@@ -60,7 +60,7 @@ public abstract class SingleITCase extends BaseITCase {
     }
     
     private String getLiteralSQL(final String sql) throws ParseException {
-        List<Object> parameters = null == assertion ? Collections.emptyList() : assertion.getSQLValues().stream().map(SQLValue::toString).collect(Collectors.toList());
-        return parameters.isEmpty() ? sql : String.format(sql.replace("%", "$").replace("?", "%s"), parameters.toArray()).replace("$", "%").replace("%%", "%").replace("'%'", "'%%'");
+        List<Object> params = null == assertion ? Collections.emptyList() : assertion.getSQLValues().stream().map(SQLValue::toString).collect(Collectors.toList());
+        return params.isEmpty() ? sql : String.format(sql.replace("%", "$").replace("?", "%s"), params.toArray()).replace("$", "%").replace("%%", "%").replace("'%'", "'%%'");
     }
 }
diff --git a/test/integration-test/test-suite/src/test/java/org/apache/shardingsphere/test/integration/framework/param/RunnerParameters.java b/test/integration-test/test-suite/src/test/java/org/apache/shardingsphere/test/integration/framework/param/RunnerParameters.java
index 0b68c7651f3..410a7e15c6a 100644
--- a/test/integration-test/test-suite/src/test/java/org/apache/shardingsphere/test/integration/framework/param/RunnerParameters.java
+++ b/test/integration-test/test-suite/src/test/java/org/apache/shardingsphere/test/integration/framework/param/RunnerParameters.java
@@ -41,8 +41,8 @@ public final class RunnerParameters {
     public ParameterizedArray getParameterizedArray() {
         Field parametersField = BlockJUnit4ClassRunnerWithParameters.class.getDeclaredField("parameters");
         parametersField.setAccessible(true);
-        Object[] parameters = (Object[]) parametersField.get(getRunner());
-        return (ParameterizedArray) parameters[0];
+        Object[] params = (Object[]) parametersField.get(getRunner());
+        return (ParameterizedArray) params[0];
     }
     
     @SneakyThrows(ReflectiveOperationException.class)
diff --git a/test/optimize/src/test/java/org/apache/shardingsphere/infra/federation/converter/parameterized/engine/SQLNodeConverterEngineParameterizedTest.java b/test/optimize/src/test/java/org/apache/shardingsphere/infra/federation/converter/parameterized/engine/SQLNodeConverterEngineParameterizedTest.java
index d65413da202..4a1c218b7a0 100644
--- a/test/optimize/src/test/java/org/apache/shardingsphere/infra/federation/converter/parameterized/engine/SQLNodeConverterEngineParameterizedTest.java
+++ b/test/optimize/src/test/java/org/apache/shardingsphere/infra/federation/converter/parameterized/engine/SQLNodeConverterEngineParameterizedTest.java
@@ -163,12 +163,12 @@ public final class SQLNodeConverterEngineParameterizedTest {
         return result;
     }
     
-    private static boolean isPlaceholderWithoutParameter(final Object[] sqlTestParameter) {
-        return SQLCaseType.Placeholder == sqlTestParameter[2] && SQL_PARSER_TEST_CASES_REGISTRY.get(sqlTestParameter[0].toString()).getParameters().isEmpty();
+    private static boolean isPlaceholderWithoutParameter(final Object[] sqlTestParam) {
+        return SQLCaseType.Placeholder == sqlTestParam[2] && SQL_PARSER_TEST_CASES_REGISTRY.get(sqlTestParam[0].toString()).getParameters().isEmpty();
     }
     
-    private static boolean isSupportedSQLCase(final Object[] sqlTestParameter) {
-        String sqlCaseId = sqlTestParameter[0].toString();
+    private static boolean isSupportedSQLCase(final Object[] sqlTestParam) {
+        String sqlCaseId = sqlTestParam[0].toString();
         return sqlCaseId.toUpperCase().startsWith(SELECT_STATEMENT_PREFIX) && SUPPORTED_SQL_CASE_IDS.contains(sqlCaseId);
     }
     
diff --git a/test/parser/src/main/java/org/apache/shardingsphere/test/sql/parser/parameterized/engine/SQLParserParameterizedTest.java b/test/parser/src/main/java/org/apache/shardingsphere/test/sql/parser/parameterized/engine/SQLParserParameterizedTest.java
index d8399a3281b..abfd2f40dca 100644
--- a/test/parser/src/main/java/org/apache/shardingsphere/test/sql/parser/parameterized/engine/SQLParserParameterizedTest.java
+++ b/test/parser/src/main/java/org/apache/shardingsphere/test/sql/parser/parameterized/engine/SQLParserParameterizedTest.java
@@ -60,8 +60,8 @@ public abstract class SQLParserParameterizedTest {
         return result;
     }
     
-    private static boolean isPlaceholderWithoutParameter(final Object[] sqlTestParameter) {
-        return SQLCaseType.Placeholder == sqlTestParameter[2] && SQL_PARSER_TEST_CASES_REGISTRY.get(sqlTestParameter[0].toString()).getParameters().isEmpty();
+    private static boolean isPlaceholderWithoutParameter(final Object[] sqlTestParam) {
+        return SQLCaseType.Placeholder == sqlTestParam[2] && SQL_PARSER_TEST_CASES_REGISTRY.get(sqlTestParam[0].toString()).getParameters().isEmpty();
     }
     
     @Test
diff --git a/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/api/impl/ConsistencyCheckJobAPIImplTest.java b/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/api/impl/ConsistencyCheckJobAPIImplTest.java
index 0d0a25a722f..56612d25beb 100644
--- a/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/api/impl/ConsistencyCheckJobAPIImplTest.java
+++ b/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/api/impl/ConsistencyCheckJobAPIImplTest.java
@@ -58,8 +58,7 @@ public final class ConsistencyCheckJobAPIImplTest {
     @Test
     public void assertCreateJobConfig() {
         String migrationJobId = "j0101test";
-        CreateConsistencyCheckJobParameter parameter = new CreateConsistencyCheckJobParameter(migrationJobId, null, null);
-        String checkJobId = checkJobAPI.createJobAndStart(parameter);
+        String checkJobId = checkJobAPI.createJobAndStart(new CreateConsistencyCheckJobParameter(migrationJobId, null, null));
         ConsistencyCheckJobConfiguration jobConfig = (ConsistencyCheckJobConfiguration) checkJobAPI.getJobConfiguration(checkJobId);
         int expectedSequence = ConsistencyCheckJobId.MIN_SEQUENCE;
         String expectCheckJobId = "j0201" + migrationJobId + expectedSequence;
@@ -73,8 +72,7 @@ public final class ConsistencyCheckJobAPIImplTest {
     public void assertGetLatestDataConsistencyCheckResult() {
         Optional<String> jobId = migrationJobAPI.start(JobConfigurationBuilder.createJobConfiguration());
         assertTrue(jobId.isPresent());
-        CreateConsistencyCheckJobParameter parameter = new CreateConsistencyCheckJobParameter(jobId.get(), null, null);
-        String checkJobId = checkJobAPI.createJobAndStart(parameter);
+        String checkJobId = checkJobAPI.createJobAndStart(new CreateConsistencyCheckJobParameter(jobId.get(), null, null));
         PipelineAPIFactory.getGovernanceRepositoryAPI().persistCheckLatestJobId(jobId.get(), checkJobId);
         Map<String, DataConsistencyCheckResult> expectedCheckResult = Collections.singletonMap("t_order", new DataConsistencyCheckResult(new DataConsistencyCountCheckResult(1, 1),
                 new DataConsistencyContentCheckResult(true)));
diff --git a/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/api/impl/MigrationJobAPIImplTest.java b/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/api/impl/MigrationJobAPIImplTest.java
index 9f6c2d5f2b8..f69b7a1a2fb 100644
--- a/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/api/impl/MigrationJobAPIImplTest.java
+++ b/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/api/impl/MigrationJobAPIImplTest.java
@@ -252,8 +252,7 @@ public final class MigrationJobAPIImplTest {
     @Test
     public void assertCreateJobConfig() throws SQLException {
         initIntPrimaryEnvironment();
-        CreateMigrationJobParameter parameter = new CreateMigrationJobParameter("ds_0", null, "t_order", "logic_db", "t_order");
-        String jobId = jobAPI.createJobAndStart(parameter);
+        String jobId = jobAPI.createJobAndStart(new CreateMigrationJobParameter("ds_0", null, "t_order", "logic_db", "t_order"));
         MigrationJobConfiguration jobConfig = jobAPI.getJobConfiguration(jobId);
         assertThat(jobConfig.getSourceResourceName(), is("ds_0"));
         assertThat(jobConfig.getSourceTableName(), is("t_order"));
diff --git a/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/algorithm/DataMatchDataConsistencyCalculateAlgorithmTest.java b/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/algorithm/DataMatchDataConsistencyCalculateAlgorithmTest.java
index d6842a93b1c..e784fb3ff66 100644
--- a/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/algorithm/DataMatchDataConsistencyCalculateAlgorithmTest.java
+++ b/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/check/consistency/algorithm/DataMatchDataConsistencyCalculateAlgorithmTest.java
@@ -84,10 +84,10 @@ public final class DataMatchDataConsistencyCalculateAlgorithmTest {
     public void assertCalculateFromBegin() throws NoSuchFieldException, IllegalAccessException {
         DataMatchDataConsistencyCalculateAlgorithm calculateAlgorithm = new DataMatchDataConsistencyCalculateAlgorithm();
         ReflectionUtil.setFieldValue(calculateAlgorithm, "chunkSize", 5);
-        DataConsistencyCalculateParameter sourceParameter = generateParameter(source, "t_order_copy", 0);
-        Optional<DataConsistencyCalculatedResult> sourceCalculateResult = calculateAlgorithm.calculateChunk(sourceParameter);
-        DataConsistencyCalculateParameter targetParameter = generateParameter(target, "t_order", 0);
-        Optional<DataConsistencyCalculatedResult> targetCalculateResult = calculateAlgorithm.calculateChunk(targetParameter);
+        DataConsistencyCalculateParameter sourceParam = generateParameter(source, "t_order_copy", 0);
+        Optional<DataConsistencyCalculatedResult> sourceCalculateResult = calculateAlgorithm.calculateChunk(sourceParam);
+        DataConsistencyCalculateParameter targetParam = generateParameter(target, "t_order", 0);
+        Optional<DataConsistencyCalculatedResult> targetCalculateResult = calculateAlgorithm.calculateChunk(targetParam);
         assertTrue(sourceCalculateResult.isPresent());
         assertTrue(targetCalculateResult.isPresent());
         assertTrue(sourceCalculateResult.get().getMaxUniqueKeyValue().isPresent());
@@ -101,10 +101,10 @@ public final class DataMatchDataConsistencyCalculateAlgorithmTest {
     public void assertCalculateFromMiddle() throws NoSuchFieldException, IllegalAccessException {
         DataMatchDataConsistencyCalculateAlgorithm calculateAlgorithm = new DataMatchDataConsistencyCalculateAlgorithm();
         ReflectionUtil.setFieldValue(calculateAlgorithm, "chunkSize", 5);
-        DataConsistencyCalculateParameter sourceParameter = generateParameter(source, "t_order_copy", 5);
-        Optional<DataConsistencyCalculatedResult> sourceCalculateResult = calculateAlgorithm.calculateChunk(sourceParameter);
-        DataConsistencyCalculateParameter targetParameter = generateParameter(target, "t_order", 5);
-        Optional<DataConsistencyCalculatedResult> targetCalculateResult = calculateAlgorithm.calculateChunk(targetParameter);
+        DataConsistencyCalculateParameter sourceParam = generateParameter(source, "t_order_copy", 5);
+        Optional<DataConsistencyCalculatedResult> sourceCalculateResult = calculateAlgorithm.calculateChunk(sourceParam);
+        DataConsistencyCalculateParameter targetParam = generateParameter(target, "t_order", 5);
+        Optional<DataConsistencyCalculatedResult> targetCalculateResult = calculateAlgorithm.calculateChunk(targetParam);
         assertTrue(sourceCalculateResult.isPresent());
         assertTrue(targetCalculateResult.isPresent());
         assertTrue(sourceCalculateResult.get().getMaxUniqueKeyValue().isPresent());
diff --git a/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/fixture/DataConsistencyCalculateAlgorithmFixture.java b/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/fixture/DataConsistencyCalculateAlgorithmFixture.java
index a0ce9457fb9..4b8a7fc66f0 100644
--- a/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/fixture/DataConsistencyCalculateAlgorithmFixture.java
+++ b/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/fixture/DataConsistencyCalculateAlgorithmFixture.java
@@ -40,7 +40,7 @@ public final class DataConsistencyCalculateAlgorithmFixture implements DataConsi
     }
     
     @Override
-    public Iterable<DataConsistencyCalculatedResult> calculate(final DataConsistencyCalculateParameter parameter) {
+    public Iterable<DataConsistencyCalculatedResult> calculate(final DataConsistencyCalculateParameter param) {
         return Collections.singletonList(new FixtureDataConsistencyCalculatedResult(2));
     }
     
diff --git a/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/fixture/FixtureDataSourcePreparer.java b/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/fixture/FixtureDataSourcePreparer.java
index 07f5c59616c..6c526d666e2 100644
--- a/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/fixture/FixtureDataSourcePreparer.java
+++ b/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/fixture/FixtureDataSourcePreparer.java
@@ -24,10 +24,10 @@ import org.apache.shardingsphere.data.pipeline.core.prepare.datasource.PrepareTa
 public final class FixtureDataSourcePreparer implements DataSourcePreparer {
     
     @Override
-    public void prepareTargetSchemas(final PrepareTargetSchemasParameter parameter) {
+    public void prepareTargetSchemas(final PrepareTargetSchemasParameter param) {
     }
     
     @Override
-    public void prepareTargetTables(final PrepareTargetTablesParameter parameter) {
+    public void prepareTargetTables(final PrepareTargetTablesParameter param) {
     }
 }
diff --git a/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/fixture/FixtureInventoryIncrementalJobItemContext.java b/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/fixture/FixtureInventoryIncrementalJobItemContext.java
index ed58fe4951e..5bb36e470a1 100644
--- a/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/fixture/FixtureInventoryIncrementalJobItemContext.java
+++ b/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/fixture/FixtureInventoryIncrementalJobItemContext.java
@@ -33,7 +33,7 @@ import java.util.Collection;
 public final class FixtureInventoryIncrementalJobItemContext implements InventoryIncrementalJobItemContext {
     
     @Override
-    public void onProgressUpdated(final PipelineJobProgressUpdatedParameter parameter) {
+    public void onProgressUpdated(final PipelineJobProgressUpdatedParameter param) {
     }
     
     @Override
diff --git a/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/prepare/datasource/AbstractDataSourcePreparerTest.java b/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/prepare/datasource/AbstractDataSourcePreparerTest.java
index a06dccc897b..a8bb9dc2da9 100644
--- a/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/prepare/datasource/AbstractDataSourcePreparerTest.java
+++ b/test/pipeline/src/test/java/org/apache/shardingsphere/data/pipeline/core/prepare/datasource/AbstractDataSourcePreparerTest.java
@@ -40,7 +40,7 @@ public final class AbstractDataSourcePreparerTest {
     private final AbstractDataSourcePreparer preparer = new AbstractDataSourcePreparer() {
         
         @Override
-        public void prepareTargetTables(final PrepareTargetTablesParameter parameter) {
+        public void prepareTargetTables(final PrepareTargetTablesParameter param) {
         }
     };