v$sqlarea statistics

From: Erik Williams <ewilliams_at_brownco.com>
Date: Tue, 23 Oct 2001 13:09:58 -0700
Message-ID: <F001.003B270D.20011023124019@fatcity.com>

I am trying to identify the most harmful statements in an application. From the Oracle Performance and Tuning Tips and Techniques book, I found two statements. Both are looking at the statements contained in the v$sqlarea. The first looks at statements with a high number of buffer gets and the other looks at the statements with a high number of disk reads. Some of the statements appear in both lists, but some in only one. If all of the disk reads are moving blocks into the buffer cache, what is the difference between the two measures? Can anyone explain the difference between the two measures?

Thanks.
Erik

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Author: Erik Williams
  INET: ewilliams_at_brownco.com

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