Monthly Archives: May 2010

EBS R12 nugget: The difference between adopmnctl.sh and opmnctl

An illustration of the difference between running opmnctl and adopmnctl.sh in EBS R12

Old PLAN_TABLE in EBS Vision

I went digging into a problem with EXPLAIN PLAN in and R12 Vision instance, and dug deep enough to find an antique.

Logging for non-existent listeners

Trying to start a database listener that doesn’t exist generates log files. In older versions of the database, it’s just one file, but what about in 11g, with its fancy Automatic DIagnostic Repository?

Resolving ORA-4023 during a 10gR2->11gR1 upgrade

Sometimes, even on the 3rd or 4th run-through of a database upgrade test, it’s possible to miss something. Practice makes perfect.