CREATE VIEW

Function

This statement creates a view based on the given query statement. If a view with the same name already exists in the database, an exception is thrown.

Syntax

CREATE [TEMPORARY] VIEW [IF NOT EXISTS] [catalog_name.][db_name.]view_name
  [{columnName [, columnName ]* }] [COMMENT view_comment]
  AS query_expression

Description

TEMPORARY

Create a temporary view with catalogs and database namespaces and overwrite the original view.

IF NOT EXISTS

If the view already exists, nothing happens.

Example

Create a view named viewName.

create view viewName as select * from dataSource