17.00 - Example: Attempting to Drop a Nonexistent Constraint - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Definition Language Syntax and Examples

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

The following request is not valid because the specified constraint does not exist and, therefore, cannot be dropped.

    ALTER TABLE table_1 DROP CONSTRAINT no_such_constr;

The system returns the following message:

The specified constraint name does not exist in table.