the debate on this topic is exactly why we need to keep this list going. Thanks for all your help guys.
>
> From: "Juan Cachito Reyes Pacheco" <jreyes_at_dazasoftware.com>
> Date: 2004/03/09 Tue AM 08:19:01 EST
> To: <oracle-l_at_freelists.org>
> Subject: Re: optimizer_index_cost_adj and optimizer_index_caching
>
> I'm using, because in a specific database a query gave trouble, and I fixed
> it setting this parameters. Curiously in other production databases (more
> than 15) similar to that, didn't gave that problem.
> But we decided to set it any way.
> I think is better to set them, even when in most situation there is not
> problems.
> :)
>
> ----- Original Message -----
> From: "Niall Litchfield" <n-litchfield_at_audit-commission.gov.uk>
> To: <oracle-l_at_freelists.org>
> Sent: Tuesday, March 09, 2004 5:01 AM
> Subject: RE: optimizer_index_cost_adj and optimizer_index_caching
>
>
> Thanks Joze and Wolfgang
>
> I'm in a position where gathering system stats seems to me to be the Right
> Thing (tm) to do, certainly an advance on setting parameters based on
> guesses/measurements ahead of time. I hadn't until now seen any indications
> as to whether the feature worked as advertised or if in fact gathering
> system stats introduced for example unexpected and unwanted plan changes,
> curious bugs etc etc. In fact I hadn't seen *any* feedback at all which made
> me suspicious that anyone was actually using it - I guess folks recall the
> introduction of the CBO which was equally the right thing to do but..
>
> Niall Litchfield
> Oracle DBA
> Audit Commission
> +44 117 975 7805
>
>
>
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Received on Tue Mar 09 2004 - 07:34:55 CST
