RE: Performance Problem

Did you analyze the sys schema by mistake. This can stop the fastest database. We had a contractor do that to an 8.0.5 database once, and only once.

Ruth

> -----Original Message-----
> From: ml-errors_at_fatcity.com [mailto:ml-errors_at_fatcity.com]On Behalf Of
> Burton, Laura
> Sent: Monday, August 25, 2003 4:49 PM
> To: Multiple recipients of list ORACLE-L
> Subject: Performance Problem
>
>
> We currently have an application we are trying to speed up. In
> researching rule/cost based optimizers, I read that the cost based
> optimizer was the way to go (although rule had its moments) because that
> is where Oracle would be focusing any upgrades, enhancements, etc.
>
> So I analyzed all tables and indexes. It brought our application to a
> stand still!! I then deleted the statistics and the application ran
> like before...slow. I know that I must have missed something although
> it seemed so straight forward. I verified that all tables were analyzed
> because I read that this would cause an extra step if all the tables
> were not analyzed.
>
> The database is Oracle 8.0.5. This weekend I will be upgrading to
> 8.1.7. The operating system is NT 4.0. Does anyone know something that
> could point me in the right direction? Thank you for your help.
>
> Laura
>
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> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: Burton, Laura
> INET: BurtonL_at_frmaint.com
>
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Ruth Gramolini
  INET: rgramolini_at_tax.state.vt.us

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