15.10 - PRIMARY KEY - 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

A column set that ensures that no two rows in the table can be duplicates. Only one primary key can be specified per table. Internally, the system uses a unique primary or secondary index to enforce this constraint.

You cannot specify a PRIMARY KEY constraint for a QITS column. See “QITS_column_name” description.