15.10 - Example: Adding a Multicolumn Unnamed UNIQUE 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

Add an unnamed uniqueness constraint to the columns named column_3 and column_4:

     ALTER TABLE table_1 ADD UNIQUE (column_3, column_4);