There are in fact 2 chapters on selectivity, which ought to serve as a
warning that perhaps the one page metalink note to which you refer is
rather basic. I entirely second Alex's suggestion.
On 7/12/06, Alex Gorbachev <gorbyx_at_gmail.com> wrote:
> I think it might be useful to look at Cost-Based Oracle Fundamentals
> book from Jonathan (chapter on Selectivity) that has nice description
> for these issues.
>
> 2006/7/12, Laimutis Nedzinskas <Laimutis.Nedzinskas_at_landsbanki.is>:
> > I need any information on how CBO calculates [predicate] selectivity
> > which is more precise than in the Note:68992.1
>
>
> --
> Best regards,
> Alex Gorbachev
>
> http://blog.oracloid.com
> --
> http://www.freelists.org/webpage/oracle-l
>
>
>
--
Niall Litchfield
Oracle DBA
http://www.orawin.info
--
http://www.freelists.org/webpage/oracle-l
Received on Wed Jul 12 2006 - 06:55:20 CDT
