Flink DDL

Flink SQL supports Data Definition Language (DDL) statements to create, modify and remove objects within a data structure.

The following table summarizes the supported DDL statements in SQL Stream Builder:


DDL	Description	Option
CREATE TABLE	Creating table for the SQL query. You can create tables based on the supported connectors.	Adding WATERMARK and PRIMARY KEY information Creating table with LIKE clause
CREATE VIEW	Creating custom views using columns from tables. There is no physical data behind a view.	Adding queries, expressions and joins
CREATE FUNCTION	Creating User Defined Function (UDF) for a query.	Using Javascript or Java language Using Functions tab on Streaming SQL Console
DROP TABLE	Deleting a table, view or function.	Using Streaming SQL Console functionality to delete table, view or function
DROP VIEW
DROP FUNCTIONS
ALTER TABLE	Modifying table, view or function properties.	Using RENAME TO or SET for table Using RENAME TO or AS for view and function
ALTER VIEW
ALTER FUNCTION

For more information about Flink SQL, see the Apache Flink documentation.