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

SQL Data Definition Language Syntax and Examples

Product
Advanced SQL Engine
Teradata Database
Release Number
17.00
Published
September 2020
Language
English (United States)
Last Update
2021-01-23
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dita:id
B035-1144
lifecycle
previous
Product Category
Teradata Vantage™

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);