15.10 - Example: Adding an Unnamed CHECK Constraint - Teradata Database

Teradata Database SQL Data Definition Language Syntax and Examples

prodname
Teradata Database
vrm_release
15.10
created_date
December 2015
category
Programming Reference
featnum
B035-1144-151K

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);