17.05 - Example: Adding an Unnamed CHECK Constraint - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Definition Language Syntax and Examples

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
Release Date
January 2021
Content Type
Programming Reference
Publication ID
B035-1144-175K
Language
English (United States)

Modify a column by adding an unnamed CHECK constraint. Column column_1 is an existing, already constrained column in table_1.

    ALTER TABLE table_1 MODIFY column_1 CHECK (column_1 IS NOT NULL);