Re: optimizer mode - how to tell

From: Thomas Kyte <tkyte_at_us.oracle.com>
Date: Thu, 21 Oct 1999 14:22:38 -0400
Message-ID: <yVkPOCgz2DbIP4DiZAx=us6hbII1@4ax.com>

A copy of this was sent to kal121_at_yahoo.com (if that email address didn't require changing) On Thu, 21 Oct 1999 16:43:25 GMT, you wrote:

>Version: Oracle 805 for Solaris
>
>Aside from the init.ora file, where can I find out what optimizer mode
>I'm presently using? On WinNT, I believe you could query the v$parameter
>view and look at the value for "optimizer_mode" or something like that.
>I don't see this on Solaris - in fact, it doesn't seem to show a lot of
>the parameters I'm used to seeing in this view. Am I just imagining
>this?
>

its all in there:

SVRMGR> show parameter optimize

NAME                                TYPE    VALUE
----------------------------------- ------- ------------------------------
optimizer_features_enable           string  8.0.4                         
optimizer_index_caching             integer 0                             
optimizer_index_cost_adj            integer 100                           
optimizer_max_permutations          integer 80000                         
optimizer_mode                      string  CHOOSE                        
optimizer_percent_parallel          integer 0                             
optimizer_search_limit              integer 5                             

SVRMGR> !uname
SunOS
SVRMGR> that was on Solaris. something else must have been happening

>Thx
>
>
>Sent via Deja.com http://www.deja.com/
>Before you buy.

--
See http://osi.oracle.com/~tkyte/ for my columns 'Digging-in to Oracle8i'... Current article is "Part I of V, Autonomous Transactions" updated June 21'st  

Thomas Kyte                   tkyte_at_us.oracle.com
Oracle Service Industries     Reston, VA   USA

Opinions are mine and do not necessarily reflect those of Oracle Corporation Received on Thu Oct 21 1999 - 13:22:38 CDT