Re: Re: getting estimate of result set from v$sql

From: Ryan <ryan_oracle_at_cox.net>
Date: Mon, 29 Dec 2003 14:49:26 -0800
Message-ID: <F001.005DB373.20031229144926@fatcity.com>

let me be clearer. I need to return an estimate of the number of rows for 'pagination'. The user will page through 25 rows a time, but wants an estimate on the total number of rows returned. I want to avoid counts.

tom kytes book says to use v$sql_plan, but how do i get my exact query? Id prefer to do it without table joins. Since I have a very strict SLA.

dbms_xplan is returning the whole thing. I just want the cardinality and I have to put it in a variable.
----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Monday, December 29, 2003 4:59 PM

> i need to return the cardinality estimate to the user as a number. how do
i do that?
> >
> > From: Stephane Faroult <sfaroult_at_oriole.com>
> > Date: 2003/12/29 Mon PM 04:29:26 EST
> > To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
> > Subject: Re: getting estimate of result set from v$sql_plan
> >
> > ryan_oracle_at_cox.net wrote:
> > >
> > > can someone send me the query I use to hit v$sql_plan to get my
estimated cardinality for a query?
> > >
> > >
> >
> > @$ORACLE_HOME/rdbms/admin/utlxpls.sql
> > or
> > $ORACLE_HOME/rdbms/admin/utlxplp.sql if you have parallelism.
> > --
> > Regards,
> >
> > Stephane Faroult
> > Oriole Software
> > --
> > Please see the official ORACLE-L FAQ: http://www.orafaq.net
> > --
> > Author: Stephane Faroult
> > INET: sfaroult_at_oriole.com
> >
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: <ryan_oracle_at_cox.net
> INET: ryan_oracle_at_cox.net

>


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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Ryan
  INET: ryan_oracle_at_cox.net

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Received on Mon Dec 29 2003 - 16:49:26 CST

Re: Re: getting estimate of result set from v$sql_plan