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ORA-00942 and Oracle shared_pool

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I'm troubleshooting a persistent problem we have with reports that will periodically lock up or take a very long time to run. Most of the time, the report works fine, but sometimes it locks.

Sometimes, recompiling the session code will make the report work faster, or the problem will go away if you wait awhile and try again.

There is no error in any Baan log and I've been searching various Oracle tables and logs.

I tried to output the v$sessions view in Oracle ("select * from v$sessions"). I have little idea how to read this output, but I notice a lot of ORA-00942 (table or view not found) errors, some associated with users running these reports.

There is no corresponding error in the Baan logs or the Oracle alert logs.

I have read that this error can sometimes be associated with a problem in the Oracle cache and running something like "ALTER SYSTEM FLUSH SHARED_POOL;" can fix it.
Has anyone had any experience with something like this in Baan?

Thanks

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