Hello - i have a realy bad saturday behind me, cause i patched my database to 8.1.7.4. On one maschine - there are no problems - the other cames to a nightmare. At least one problem surprised me. All objekts after the Patch are invalid. Realy all objekts - functions, procedures, packages and triggers. OK - we must install another patch after the main patch, cause using speciell software. A part of the patch was also to reinstall the catalog.sql . But i never imagined, that all objects can be invallid. Have someone the same problems with that patch? Is it possible that a patch set all objects to invalid? That make me real nervous.