My Oracle Support Banner

How to Downgrade to 12c After Upgrade To 19c Using Flashback database (Doc ID 2887982.1)

Last updated on APRIL 17, 2023

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


Goal of this Document is to Downgrade the Database After Upgrading it from 12c to 19.

Downgarde is been Done either due to Failed Upgrade to 19c or Due to Some Performance issue at Application level in 19


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
 Step 1:- Configure Flashback database in the Source version
 Step 2 :- Upgrade the database to the target version (19c)
 Step 3 :- Flashback to the GRP using the Upgraded /Failed 19c home
 Step 4 :- Open the database using 12c home
 Step 5 :- Take a Fresh Rman backup

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.