Rules and Restrictions | ALTER TABLE | Teradata Vantage - 17.10 - Rules and Restrictions for the Number of Changes Made in One ALTER TABLE Statement - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Definition Language Detailed Topics

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Programming Reference
Publication ID
B035-1184-171K
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.