BEFORE JOURNAL - Advanced SQL Engine - Teradata Database

SQL Data Definition Language Syntax and Examples

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
Published
January 2021
Language
English (United States)
Last Update
2021-01-22
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B035-1144
lifecycle
previous
Product Category
Teradata Vantage™

The number of before change images to be maintained.

If the JOURNAL keyword is specified without NO or DUAL, then a single copy of the image is maintained unless FALLBACK is in effect or is also specified.

If journaling is requested for a table that uses fallback protection, DUAL images are maintained automatically.

Permanent journaling is not supported for NoPI tables, column-partitioned tables, global temporary tables, or volatile tables.

DUAL
Dual images are maintained.
NO
A journal image is not maintained.