Unrecoverable Changes reported in v$datafile for User tablespace datafiles due to Internal Compression Advisor tables
(Doc ID 2233391.1)
Last updated on NOVEMBER 05, 2019
Applies to:Oracle Database - Enterprise Edition - Version 18.104.22.168 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
Application related tablespace all have Logging attributes set at segment level.
Database doesnot have Force logging mode enabled, However there are No nologging operations like Append with Parallel hint,Direct load are done through Application.
V$datafile shows Unrecoverable_change# and Unrecoverable_time for user tablespace datafiles.
Object involved has a name starting with CMP example :- CMP4$225 etc
Where the last two digits indicates the Object id of the for which this compression table was created
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!
In this Document