16.20 - Example: Attempting to Drop a Nonexistent Constraint - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Data Definition Language Syntax and Examples

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Published
March 2019
Language
English (United States)
Last Update
2019-05-24
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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.