15.10 - Example: Adding a PRIMARY KEY Constraint to a Table - 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

table_1 must not already have a defined PRIMARY KEY constraint. Constraint name primary_1 must not duplicate an existing constraint name in table_1.

     ALTER TABLE table_1
       ADD CONSTRAINT primary_1 PRIMARY KEY (column_1, column_2);

column_1 and column_2 must be NOT NULL or an error is returned.