I had a problem with a sys package many years ago. Don't know why it became invalid but it did and we could not manually compile it. At the time I opened a TAR with Oracle on the subject because the package was wrapped and therefore not something you can troubleshoot. Anyway, the support analyst told me very clearly that one can run the basic install scripts (catalog, catproc, etc...) at anytime without damaging the database as long as one did it with no users connected to the database. (duh, that makes sense). So we did over a night and presto the package was valid, our problems cleared up and everyone was happy. Recently I had another problem with the OLAP package and again files a TAR. Same answer, almost verbatim, came back and yes it did fix the problem. Dick Goulet Senior Oracle DBA ________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of John Dunn Sent: Wednesday, December 01, 2010 4:15 AM To: oracle-l@xxxxxxxxxxxxx Subject: Reinstall sys packages Is there a quick way to re-install sys packages(other than complete re-install/backups). I seem to have accidentially deleted some!! John