[GitHub] [spark] gatorsmile commented on a change in pull request #25525: [SPARK-28786][DOC][SQL]Document INSERT statement in SQL Reference

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gatorsmile commented on a change in pull request #25525: [SPARK-28786][DOC][SQL]Document INSERT statement in SQL Reference
URL: https://github.com/apache/spark/pull/25525#discussion_r318885898
 
 

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 File path: docs/sql-ref-syntax-dml-insert-into.md
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+---
+layout: global
+title: INSERT INTO
+displayTitle: INSERT INTO
+license: |
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements.  See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License.  You may obtain a copy of the License at
+ 
+     http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+---
+
+### Description
+
+The `INSERT INTO` statement inserts new rows into a table. The inserted rows can be specified by value expressions or result from a query.
+
+### Syntax
+{% highlight sql %}
+INSERT INTO [ TABLE ] table_name
+    [ PARTITION ( partition_col_name [ = partition_col_val ] [ , ... ] ) ]
+    { { VALUES ( { value | NULL } [ , ... ] ) [ , ( ... ) ] } | query }
+{% endhighlight %}
+
+### Parameters
+<dl>
+  <dt><code><em>table_name</em></code></dt>
+  <dd>The name of an existing table.</dd>
+</dl>
+
+<dl>
+  <dt><code><em>PARTITION ( partition_col_name [ = partition_col_val ] [ , ... ] )</em></code></dt>
+  <dd>Specifies one or more partition column and value pairs. The partition value is optional.</dd>
+</dl>
+
+<dl>
+  <dt><code><em>VALUES ( { value | NULL } [ , ... ] ) [ , ( ... ) ]</em></code></dt>
+  <dd>Specifies the values to be inserted. Either an explicitly specified value or a NULL can be inserted. A comma must be used to seperate each value in the clause. More than one set of values can be specified to insert multiple rows.</dd>
+</dl>
+
+<dl>
+  <dt><code><em>query</em></code></dt>
+  <dd>A query that produces the rows to be inserted. It can be in one of following formats:
+    <ul>
+      <li>a <code>SELECT</code> statement</li>
+      <li>a <code>TABLE</code> statement</li>
+      <li>a <code>FROM</code> statement</li>
+    </ul>
+   </dd>
+</dl>
+
+### Examples
+#### Single Row Insert Using a VALUES Clause
+{% highlight sql %}
+ CREATE TABLE students (Name VARCHAR(64), Address VARCHAR(64), StudentID INT)
 
 Review comment:
   Could you change all the column names to lower case? 
   
   Name -> name. 

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