wuchong commented on a change in pull request #9366: [FLINK-13359][docs] Add
documentation for DDL introduction
URL: https://github.com/apache/flink/pull/9366#discussion_r316100582
##########
File path: docs/dev/table/sql.md
##########
@@ -1065,8 +1064,119 @@ MATCH_RECOGNIZE (
{% top %}
-Data Types
-----------
+## DDL
+
+DDLs are specified with the `sqlUpdate()` method of the `TableEnvironment`.
The method returns nothing for a success table creation. A `Table` can be
register into the [Catalog](catalog.html) with a `CREATE TABLE` statement, then
be referenced in the SQL queries in method `sqlQuery()` of `TableEnvironment`.
Review comment:
```suggestion
DDLs are specified with the `sqlUpdate()` method of the `TableEnvironment`.
The method returns nothing for a success table creation. A `Table` can be
register into the [Catalog](catalogs.html) with a `CREATE TABLE` statement,
then can be referenced in SQL queries in method `sqlQuery()` of
`TableEnvironment`.
```
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