UPDATE 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 Vantage™
valid_time_table
The valid time table in which you are modifying rows.
FOR PORTION OF
Qualifies rows to be modified that have valid-time periods that are within or that overlap the period defined by point_in_time_1 and point_in_time_2.
valid_time_period_name
The name of the valid-time derived period column. This is not “VALIDTIME.” It is the name assigned to the derived period column when the table was defined.
point_in_time_1
point_in_time_2
Delimits the period of applicability of the modification.
A date or timestamp expression that can be a constant, scalar UDF, scalar subquery, or business calendar function that evaluates to a DATE or TIMESTAMP[(n)] [WITH TIME ZONE] value.
The expression can be any expression, including parameterized values and built-in functions such as CURRENT_DATE, CURRENT_TIMESTAMP, TEMPORAL_DATE, or TEMPORAL TIMESTAMP. The expression cannot reference any columns, but it can be a self-contained noncorrelated scalar subquery.
SET set_clause_list
WHERE search_condition
For information on the this syntax and other nontemporal keywords, clauses, and options for UPDATE, see Teradata Vantage™ - SQL Data Manipulation Language, B035-1146.
The SET clause cannot include the start or end column components of the valid time period.