16.20 - Example: Adding a Column With an Unnamed CHECK 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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Add an unnamed CHECK constraint to ensure that values in column column_1 are always greater than 0.

This example is valid only if there is not an existing unnamed column level CHECK for column_1 in table_1.

     ALTER TABLE table_1 ADD CONSTRAINT column_1 CHECK (column_1 > 0);