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FAQ & Reference: Recommended patching and actions for Oracle database versions, and earlier - before June 2019 (Doc ID 2335265.1)

Last updated on JANUARY 15, 2020

Applies to:

Oracle Database - Standard Edition - Version to [Release 11.1 to 12.1]
Oracle Database - Enterprise Edition - Version to [Release 11.1 to 12.1]
Information in this document applies to any platform.


This support note provides additional info related to recommended patching requirement for Oracle databases versions, &, to be done before June 2019.



 The document is intended for all DBAs.


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In this Document
 1. What are the recommended patchset/PSU/BP/RU levels ?
 2. What is the timeline for moving to the recommended patchset/PSU/BP mentioned ?
 3. What is the change introduced by the patches listed above?
 4. What happens if the recommended PSU / patchset is not applied?
 5. What about databases that are 10.2 or older, which are not listed in the table?
 6. How can I check the details regarding the dblinks to and from a database?
 7. Will there be any issues with the db links connecting two unpatched databases ? Or databases of older versions?
 8. Will the dblinks involving a patched and an unpatched database, stop working immediately after June 2019? 
 9. What should I do, if the dblink connection from an older version database to a latest (or patched) version database fails, after June 2019?
 10. What do we need to do for, and database releases?
 11. Can I use Transportable Tablespace option from lower versions to 12c? Will it be affected due to this change?
 12. Will there be any PDB unplug and plug issues from unpatched Databases on 12c?
 13. Support and Questions

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