By Mike Dietrich-Oracle on May 03, 2016
This question was in my inbox this morning raised by a customer via a colleague.
Our feeling said:
Yes, but you'll have to deinstall the PSU first before applying the BP.
Having a feeling is one thing, knowing the truth is better. And as I have so much fun by applying PSUs and BPs back and forth since two weeks I thought "let's give it a try". So here we go ...
Apply a BP on top of a PSU
This is my starting point - Oracle Database 188.8.131.52 with PSU October 2015, the last state in my VBox environment since I experiment with parameters and packages at the moment.
And this is the result when trying to apply the BP from April 2016 on top:
Ok, our suspicion was correct.
There are a lot of conflicts - I have to remove the PSU first. And of course the recommended conflict check would have given me the same result. Furthermore I think I have read this a while back in one of the central notes about PSUs and BPs in MOS as well.
Removing the PSU from October 2015 first
Removing a PSU or BP is very simple and straight forward (and well described in the ReadMe.html coming coming with the patch).
Apply the BP from April 2016
I don't want to repeat myself as I wrote already about this positive experience a few days ago:Oracle Database BP April 2016 applied successfully (Apr 21, 2016)
You'll find recent related postings on this blog here:
- Oracle April 2016 PSU and Proactive BPs are there (Apr 21, 2016)
- Oracle Database BP April 2016 applied successfully (Apr 21, 2016)
- MOS Note 1454618.1: Quick Reference to Database PSUs, CPUs, BPs and Patchsets (Apr 26, 2016)