Checking Conflicts Before Applying CPU Patch

Patching and Upgradation

Hi Friends, today I want to bring an important update regarding Jul CPU 2011 patch applying.

most of the times, we will never check any conflicts for the patches when applying any CPU. ofcourse this conflict checking command is not there even in README.html file that is distributed with patch.

Please use below command to check the conflicts aganist the oracle_home and avoid to land in problems
step 1: unzip your patch zip file
step 2: run below command
$ORACLE_HOME/OPatch/opatch prereq CheckConflictAgainstOHWithDetail -phBaseDir
$ unzip
$ $ORACLE_HOME/OPatch/opatch prereq CheckConflictAgainstOHWithDetail -phBaseDir 9655017
The other day, when I am doing patching on a RAC database, after executing the above conflict command, got below error
Following patches have conflicts. Please contact Oracle Support and get the merged patch of the patches :
6600051, 8836683
Whenever you get this type of error message, plz contact oracle support by raising a service request(SR)
In my case, Oracle support suggested to apply a merge patch 9347333 before applying Jul CPU 2011. Once done with applying merge patch, without any further issues I successfully applied CPU patch
Sometimes apart from above message you may see below warning messages which you can ignore