15.10 - Example: Attempting to Drop a Nonexistent Constraint - Teradata Database

Teradata Database SQL Data Definition Language Syntax and Examples

Product
Teradata Database
Release Number
15.10
Published
December 2015
Content Type
Programming Reference
Publication ID
B035-1144-151K
Language
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.