Are BPs, PSUs and Proactive BPs cumulative?

Are Bundle Patches (BPs) and Patch Set Updates (PSUs) cumulative?

That is a question sounding trivial to many people but actually it does get asked quite often. And sometimes I forget to mention this during the workshops – and luckily usually somebody asks the question reminding me to explain it.

Yes, Bundle Patches and Patch Set Updates (and of course Proactive Bundle Patches and Critical/Security Patch Updates (CPUs/SPUs) are all cumulative.

You’ll find this mentioned in the first paragraph of MOS Note: 854428.1 – Patch Set Updates for Oracle Products:


Interesting note on the side:
I would have expected this important piece of information in MOS Note:1962125.1 – Oracle Database – Overview of
Database Patch Delivery Methods
but I couldn’t find it. So it’s no wonder why people ask such a trivial question … [irony!]

Two simple examples:

  • You have the October 2015 PSU applied
  • You’d like to apply the April 2016 PSU on top
    • Then you don’t need the January 2016 PSU as it is included in the April 2016 PSU already
  • You never applied a Procative Bundle Patch
  • You’d like to apply the April 2016 Proactive Bundle because a guy recommended it on an Oracle blog – and actually MOS notes mention it as well as highly recommended
    • You don’t need to apply anything beforehand.
      The April 2016 Proactive BP has all the fixes from all previous BPs included on top of Oracle Database 12.1.0.2.0

 –Mike

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