HELP CONSTRAINT SQL Statement | Teradata Vantage - 17.00 - HELP CONSTRAINT - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Definition Language Syntax and Examples

Advanced SQL Engine
Teradata Database
Release Number
September 2020
Content Type
Programming Reference
Publication ID
English (United States)

Displays the attributes for a specific named constraint on a table. Use the SHOW TABLE statement to obtain unnamed constraint information. See “SHOW object.”

The HELP CONSTRAINT statement does not report information for row-level security constraints. Specify the CONSTRAINT option with a HELP SESSION request to report the constraint values associated with a session.


You must own the table in which the constraint is defined or have at least one privilege on that table.

Use the SHOW privilege to enable a user to perform HELP or SHOW requests only against a specified constraint.