17.10 - Example: Adding a Named UNIQUE Constraint to a Table - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Definition Language Syntax and Examples

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Programming Reference
Publication ID
B035-1144-171K
Language
English (United States)

Constraint name unique_1 must not be an existing constraint name in table_1.

ALTER TABLE table_1 ADD CONSTRAINT unique_1 UNIQUE (column_1, column_2);