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One guess in line.
-- Regards Jonathan Lewis http://www.jlcomp.demon.co.uk The educated person is not the person who can answer the questions, but the person who can question the answers -- T. Schick Jr One-day tutorials: http://www.jlcomp.demon.co.uk/tutorial.html Three-day seminar: see http://www.jlcomp.demon.co.uk/seminar.html ____UK___November The Co-operative Oracle Users' FAQ http://www.jlcomp.demon.co.uk/faq/ind_faq.html "Mark" <marksgnga_at_yahoo.com> wrote in message news:41d52a1a.0312022033.11eb99c1_at_posting.google.com...Received on Wed Dec 03 2003 - 02:38:53 CST
> I can provide more detail if necessary. I partly suspect the DBA made
> a change and either doesn't know it or won't fess up. I'm hoping there
> is some other explaination ... 'learning optimizer'(ha!), etc. Why did
> the reboot change/reset things?
>
Someone did : alter system set ..... scope = memory to a parameter that affects the optimizer. The reboot restarted the database using the original init.ora / spfile settings.
> Thanks in an advance for any guidance,
> Mark