Flashback DB and DMU to Convert Characterset to Unicode (AL32UTF8) and Revert Back
(Doc ID 1947587.1)
Last updated on AUGUST 23, 2021
Applies to:Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Oracle Database - Enterprise Edition - Version 18.104.22.168 to 22.214.171.124 [Release 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.
***Checked for relevance on 23-Jun-2018***
How to use Flashback database and DMU for preserve characterset and convert characterset to Unicode (AL32UTF8) and revert back to previous character set?
Can we use Flashback database and DMU to quickly come back to the state to before conversion?
How do we reverse back the characterset conversion with flashback ?
We have tested only with the conversion using DMU (not the csscan and csalter), also we recommend you to test in your lower environment before doing any migration or flashback
Lab Environment used for testing
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