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RE: Explain plan accuracy and bind variables

From: Cary Millsap <cary.millsap_at_hotsos.com>
Date: Fri, 6 Feb 2004 09:32:21 -0600
Message-ID: <007e01c3ecc6$6cd05c20$6a01a8c0@CVMLAP02>


It means "wrong plan." Different row source operations which aren't what Oracle would really do if you were to run the query.

Cary Millsap
Hotsos Enterprises, Ltd.
http://www.hotsos.com
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-----Original Message-----

From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Khedr, Waleed Sent: Friday, February 06, 2004 9:18 AM
To: 'oracle-l_at_freelists.org'
Subject: RE: Explain plan accuracy and bind variables

How do you define inaccurate?

Waleed

-----Original Message-----

From: ryan.gaffuri_at_cox.net [mailto:ryan.gaffuri_at_cox.net] Sent: Friday, February 06, 2004 7:38 AM
To: oracle-l_at_freelists.org
Subject: Explain plan accuracy and bind variables

I read somewhere that explain plans are not always accurate. Does this include autotrace? What about if I do a 10046 or just a sql_trace?

Are explain plans more apt to be inaccurate with bind variables(I think I
read that somewhere). If so, why?



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Received on Fri Feb 06 2004 - 09:32:21 CST

Original text of this message

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