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Posted to notifications@shardingsphere.apache.org by "FlyingZC (via GitHub)" <gi...@apache.org> on 2023/07/13 08:16:18 UTC

[GitHub] [shardingsphere] FlyingZC opened a new issue, #27166: Support parsing Oracle SET VERIFY sql

FlyingZC opened a new issue, #27166:
URL: https://github.com/apache/shardingsphere/issues/27166

   # Background
   Hi community,
   This issue is for #26878.
   
   ShardingSphere parser engine helps users parse a SQL to get the AST (Abstract Syntax Tree) and visit this tree to get SQLStatement (Java Object). Currently, we are planning to enhance the support for Oracle SQL parsing in ShardingSphere.
   
   More details:
   https://shardingsphere.apache.org/document/current/en/reference/sharding/parse/
   
   # Task
   This issue is to support more oracle sql parse, as follows:
   ```sql
   SET VERIFY OFF
    ACCEPT user CHAR PROMPT &rsquor;Enter user to connect to: &rsquor; 
    ACCEPT password CHAR PROMPT &rsquor;
   ```
   
   ```sql
   SET last_name = 'Smith';
   ```
   
   ```sql
   SET last_name = INITCAP(last_name);
   ```
   
   ```sql
   SET serveroutput on
   DECLARE
       old_group varchar2(30);
   BEGIN
     DBMS_SESSION.SWITCH_CURRENT_CONSUMER_GROUP('BATCH_GROUP', old_group, FALSE);
     DBMS_OUTPUT.PUT_LINE('OLD GROUP = ' || old_group);
   END;
   ```
   
   ```sql
   SHOW CHANNEL FOR DEVICE TYPE sbt;
   ```
   
   # Process
   1. First confirm that this is a correct oracle sql syntax, if not please ignore;
   2. Compare SQL definitions in Oficial SQL Doc and ShardingSphere SQL Doc;
   3. If there is any difference in ShardingSphere SQL Doc, please correct them by referring to the Official SQL Doc;
   4. Run mvn install the current_file_module;
   5. Check whether there are any exceptions. If indeed, please fix them. (Especially xxxVisitor.class);
   6. Add new corresponding SQL case in SQL Cases and expected parsed result in Expected Statment XML;
   7. Run SQLParserParameterizedTest to make sure no exceptions.
   
   # Relevant Skills
   1. Master JAVA language
   2. Have a basic understanding of Antlr `g4` file
   3. Be familiar with Oracle SQLs


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[GitHub] [shardingsphere] FlyingZC commented on issue #27166: Support parsing Oracle SET VERIFY sql

Posted by "FlyingZC (via GitHub)" <gi...@apache.org>.
FlyingZC commented on issue #27166:
URL: https://github.com/apache/shardingsphere/issues/27166#issuecomment-1665224215

   Close the issue, `SET SERVEROUTPUT` can only be executed in `sqlplus`.


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[GitHub] [shardingsphere] FlyingZC closed issue #27166: Support parsing Oracle SET VERIFY sql

Posted by "FlyingZC (via GitHub)" <gi...@apache.org>.
FlyingZC closed issue #27166: Support parsing Oracle SET VERIFY sql
URL: https://github.com/apache/shardingsphere/issues/27166


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