RE: Do any of you know?

  • From: <Christopher.Taylor2@xxxxxxxxxxxx>
  • To: <ian@xxxxxxxxxxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
  • Date: Fri, 12 Oct 2012 10:05:40 -0500

Correct.  I know that.

I use dbms_pool.purge to flush the plan information.  I wasn't clear on that I 
guess.

Chris

-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On 
Behalf Of MacGregor, Ian A.
Sent: Friday, October 12, 2012 9:59 AM
To: oracle-l@xxxxxxxxxxxxx
Subject: RE: Do any of you know?

Taking system stats does not invalidate cursors.   Statements will continue to 
use the same plans until they  are re-parsed for other reasons,

Ian A. MacGregor
SLAC National Accelerator Laboratory
Computing Division

________________________________________
From: oracle-l-bounce@xxxxxxxxxxxxx [oracle-l-bounce@xxxxxxxxxxxxx] On Behalf 
Of Christopher.Taylor2@xxxxxxxxxxxx [Christopher.Taylor2@xxxxxxxxxxxx]
Sent: Friday, October 12, 2012 7:43 AM
To: jonathan@xxxxxxxxxxxxxxxxxx; mwf@xxxxxxxx; niall.litchfield@xxxxxxxxx; 
oratune@xxxxxxxxx; breitliw@xxxxxxxxxxxxx
Cc: oracle-l@xxxxxxxxxxxxx
Subject: Do any of you know?

When gathering SYSTEM stats, do those stats take a while to affect the query 
plans once they are collected?  (a "while" being some "x" amount of time - I 
thought they would be immediate)

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