ALTER TABLE Statement (ANSI System-Time Table Form) | Teradata Vantage - ALTER TABLE (ANSI System-Time Table Form) - Analytics Database - Teradata Vantage

ANSI Temporal Table Support

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
ft:locale
en-US
ft:lastEdition
2023-10-30
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jqu1628112571823.ditamap
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qkf1628213546010.ditaval
dita:id
esa1472244798285
lifecycle
latest
Product Category
Teradata Vantageā„¢

Temporal syntax for ALTER TABLE allows you to create ANSI temporal system-time tables from existing tables.

Adding system-time to the table involves these ALTER TABLE operations:
  • Adding a SYSTEM_TIME derived period column to the table by specifying the columns that will serve as the beginning and ending bounds of the system-time period.
  • Adding or altering the columns that will serve as the beginning bound and ending bound of the system-time period. If these columns already exist in the table, special attributes must be added to them.
  • Adding system versioning to the table.