Oracle 11.2.0.3 to 11.2.0.4 windows 64bit dbua ORA-00955 during server upgrade
I have just completed the upgrade of one of my databases from 11.2.0.3 to 11.2.0.4 using the wizard. Just to be precise it is on windows patch bundle 11.2.0.4.12 (20127071)
Anyway during the install I saw ORA-00955: name is already used by an existing object.
I clicked ignore - actually I ended up clicking ignore about 20 times not knowing if I was in a loop or if it was working. I'm glad I persisted and not bailed out on the abort option.
I checked the log produced - Oracle_Server - to find out what caused it. It seems during the install of the catlmnr.sql script every SYSTEM.LOGMNR was already there. Now that seems to solve the issue as to why the errors came up during the upgrade, but it seems strange it would appear during an upgrade on the screen when you have no idea what object caused it or whether you should abort and start again.