RE: Which plan is better - what COST really means ?
- From: "Gints Plivna" <Gints.Plivna@xxxxxxxxx>
- To: <premj@xxxxxxxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 14 Jan 2005 10:43:32 +0200
You can find detailed information how CBO works and calculates costs in
http://www.centrexcc.com under Papers section.
Just reading a bit of them now...
Gints
> -----Original Message-----
> From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx]
> On Behalf Of Prem Khanna J
> Subject: Which plan is better - what COST really means ?
> Friends,
> when i have got two plans , how do i decide
> which one is the best ?
> just read in asktom , that COST of a plan ,
> does not have any correspondence with response
> time of a query.
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