Re: Library Cache and Share wait on Latch - Version Count Huge
- From: Tanel Poder <tanel@xxxxxxxxxx>
- To: Mudhalvan Moovarkku <moovarkku.mudhalvan@xxxxxxxxxxxxxxxx>
- Date: Thu, 18 Mar 2010 08:46:31 +0800
Of course before you do anything, check whether the tables involved in the
problem queries do have histograms in their stats at all, to make sure that
this is your problem.
Also, check whether any of the V$SQL_SHARED_CURSOR columns is Y, like I've
done in the end of this blog article:
http://blog.tanelpoder.com/2009/01/23/multipart-cursor-subexecution-and-precompute_subquery-hint/
--
Tanel Poder
http://tech.e2sn.com
On Thu, Mar 18, 2010 at 8:43 AM, Tanel Poder <tanel@xxxxxxxxxx> wrote:
> After setting method_opt to REPEAT you will also need to manually drop all
> the histograms, as they have been already created for you.
>
>
>
Other related posts:
