ALTER TABLE Syntax Elements (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
Language
English (United States)
Last Update
2023-10-30
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lifecycle
latest
Product Category
Teradata Vantageā„¢
table_name
The name of the valid-time table. May include database qualifier.
valid_time_period
The name of the valid-time derived period column.
valid_start
The name of the column that will store the beginning bound of the valid-time period.
valid_end
The name of the column that will store the ending bound of the valid-time period.
[AS] VALIDTIME
Required to create valid-time tables in Vantage.
The [AS] VALIDTIME clause allows SELECT statements on valid-time tables to use special temporal qualifiers (AS OF, BETWEEN, FROM TO, CONTAINED IN), which ANSI does not support on valid-time tables. For more information see Valid-Time Modifications.
[AS] VALIDTIME is a Teradata extension to ANSI.
WITHOUT DELETE
Prevents automatic deletion of history and future rows when the valid-time derived period column is dropped from a table.
WITHOUT DELETE is a Teradata extension to ANSI.