15.10 - MODIFY CHECK (boolean_condition ) - 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

Change an existing CHECK constraint. The table or column constraint must already exist.
Teradata Database scans existing rows of the table to validate that the current values conform to the specified constraint. Otherwise, the system returns an error to the requestor and does not change the table definition.

CONSTRAINT name
Named CHECK column constraint as a table attribute. Specify a column_name on the left-hand side of boolean_condition.