16.20 - Rules and Restrictions for the Number of Changes Made in One ALTER TABLE Statement - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Data Definition Language Detailed Topics

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Release Date
March 2019
Content Type
Programming Reference
Publication ID
B035-1184-162K
Language
English (United States)

The rules for number of changes that can be made within a single ALTER TABLE statement are as follows.

  • Only one change can be made per column per ALTER TABLE statement.
  • Only one CHECK alteration is permitted per ALTER TABLE statement, and you cannot mix CHECK and non-CHECK alterations on the same table for the same ALTER TABLE statement.