16.20 - OLD TABLE - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Data Definition Language Syntax and Examples

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Published
March 2019
Content Type
Programming Reference
Publication ID
B035-1144-162K
Language
English (United States)
Last Update
2019-05-24
OLD_TABLE
Equivalent introductions to a table correlation name for the old values transition table.
OLD TABLE is the form specified by the ANSI SQL-2011 standard.
OLD_TABLE is a Teradata extension retained for backward compatibility.
You can specify OLD_TABLE or OLD TABLE references in both statement triggers and row triggers.
You can specify a normalize Period column for OLD TABLE or OLD_TABLE.
OLD_TABLE and OLD TABLE are valid only for DELETE, MERGE UPDATE, and UPDATE triggering events.
AS old_transition_table_name
Table alias name specified with the OLD TABLE or OLD_TABLE options for referencing the transition table of old values.
The AS keyword preceding old_transition_table_name is optional.