Fwd: Re: Really deleting system statistics?
- From: Peter Alteheld <palteheld@xxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Wed, 11 May 2005 15:47:20 +0200 (CEST)
Hi,
I wanted to learn about the cpu model behaviour when no system statistics are
available. That is different from the io model.
Peter
amit poddar <amit.poddar@xxxxxxxx> wrote:
How about settting
_optimizer_cost_model to *io
SQL> alter session set "_optimizer_cost_model"=abc;
ERROR:
ORA-00096: invalid value ABC for parameter _optimizer_cost_model, must
be from
among choose, io, cpu
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