RE: Why a rebuild speeds up my queries.

From: Wolfgang Breitling <breitliw_at_centrexcc.com>
Date: Wed, 1 Sep 2004 07:24:49 -0700
Message-ID: <1094048689.4135dbb18e5c6@webmail.hosting.telus.net>

A good value to start is to figure out the growth ratio of your table:

100* (1 - avg_row_len(newborn row) / avg_row_len(grown-up row) )

e.g. if a row is about twice as big when it has been fully updated that when it was new, then you get 100*(1 - 0.5) = 50

Quoting David Sharples <dsharples_at_cerebrussolutions.com>:

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regards

Wolfgang Breitling
Oracle 7,8,8i,9i OCP DBA
Centrex Consulting Corporation
www.centrexcc.com

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Received on Wed Sep 01 2004 - 11:09:10 CDT