column_name - Analytics Database - Teradata Vantage

SQL Data Definition Language Syntax and Examples

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2024-10-04
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lifecycle
latest
Product Category
Teradata Vantage™

A column in the column set to be used as the primary key or as unique.

You cannot specify the QITS column to be either UNIQUE or a PRIMARY KEY. See QITS_column_name.

If more than one column_name is specified, the PRIMARY KEY or UNIQUE column set is based on the combined values of the column named.

A maximum of 64 columns can be specified for a primary key.

Columns listed in a UNIQUE or PRIMARY KEY table constraint must all be defined as NOT NULL.