ALTER TABLE Syntax (ANSI Valid-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
dita:ditavalPath
qkf1628213546010.ditaval
dita:id
esa1472244798285
lifecycle
latest
Product Category
Teradata Vantageā„¢

Use the following ALTER TABLE syntax to create a valid-time table by adding a valid-time derived period column:

ALTER TABLE table_name
  ADD PERIOD FOR valid_time_period ( valid_start, valid_end ) [AS] VALIDTIME [;]

Use the following syntax to drop a valid-time derived period column:

ALTER TABLE table_name
  DROP valid_time_period [ WITHOUT DELETE ] [;]