Hallo Dennis, what DB version it is ? Can you send the content of the SQLProfile ? How did you create it ? Best Regards, Petr ________________________________________ Von: oracle-l-bounce@xxxxxxxxxxxxx [oracle-l-bounce@xxxxxxxxxxxxx]" im Auftrag von "Riyaj Shamsudeen [riyaj.shamsudeen@xxxxxxxxx] Gesendet: Dienstag, 30. November 2010 00:07 Bis: oracledba.williams@xxxxxxxxx Cc: oracle-l@xxxxxxxxxxxxx; rshamsud@xxxxxxxxx Betreff: Re: SQL Profile strange behavior Dennis I haven't seen this specific issue, few of my clients use profiles with no such issue. did you have problem with older init.ora file or after reverting back to new spfile? Remember that profiles is a set of hints(hinted completely though) and if you have set some initialization parameters disallowing the execution path, then I can see profiles not working as intended. For example, if the profile has index_ffs hint, but the init.ora parameter disallows index fast full scan with _fast_full_scan_enabled=false, then the profile will not work as intended. Do you mind sending last part of that 10053 trace file? Cheers Riyaj Shamsudeen Principal DBA, Ora!nternals - http://www.orainternals.com - Specialists in Performance, Recovery and EBS11i Blog: http://orainternals.wordpress.com OakTable member http://www.oaktable.com Co-author: "Expert Oracle practices: Oracle Database Administration from the Oak Table" http://www.apress.com/book/view/9781430226680 On Wed, Nov 24, 2010 at 10:52 AM, Dennis Williams <oracledba.williams@xxxxxxxxx<mailto:oracledba.williams@xxxxxxxxx>> wrote: List, We have a errant query and created a SQL Profile for it. This worked great but after a few days it seemed to not be effective. I confirmed that the query was still using the profile. Eventually I ran a 10053 trace and at the bottom was the line: ******* WARNING: SOME HINTS HAVE ERRORS ******** We dropped the profile and behavior seemed to improve. Now the developers have less faith in profiles and are wanting to rely on OPTIMIZER_COST_ADJ and OPTIMIZER_INDEX_CACHING instead. This was pretty much the first time we'd given profiles a try, so our experience is profiles is limited. Has anyone had experience with profiles going bad? The only unusual thing that happened between profile creation and this incident was that we accidentally started the database with an old init.ora file. Once we figured out what happened, we restarted with the SPFILE. Any thoughts appreciated, Have a Happy Thanksgiving, Dennis Williams -- //www.freelists.org/webpage/oracle-l