RE: Simple insert - 36,000 physical reads

From: Michael Fontana <>
Date: Fri, 12 Dec 2008 15:02:06 -0600 (CST)
Message-ID: <>

Explain plan?  

From: [] On Behalf Of Stephens, Chris
Sent: Friday, December 12, 2008 2:57 PM
To:; Subject: RE: Simple insert - 36,000 physical reads  


From: [] On Behalf Of Dennis Williams
Sent: Friday, December 12, 2008 2:55 PM
Subject: Simple insert - 36,000 physical reads  


Oracle, Solaris 8  

I've found a simple insert that has:

     1 execution

     2,512,102 Buffer Gets

     36,479 Physical Reads

     1 Parse call

     1 Row  

This insert statement appears quite a few times in the AWR report, and for the times I see it, the statistics are pretty close to what I've listed. The insert just has a list of columns and a list of values. No subqueries. There is a TO_DATE conversion on two columns.This is a real table, not a view.  

Does anyone have any suggestions of why a simple insert could cause this much database activity?  

Thanks to Brandon for suggesting awrsqrpt.sql in response to another question. That is a great tool.  

Dennis Williams  

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Received on Fri Dec 12 2008 - 15:02:06 CST

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