RE: Why a rebuild speeds up my queries.

  • From: Wolfgang Breitling <breitliw@xxxxxxxxxxxxx>
  • To: oracle-l@xxxxxxxxxxxxx
  • Date: Wed, 1 Sep 2004 07:24:49 -0700

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@xxxxxxxxxxxxxxxxxxxxx>:


Wolfgang Breitling
Oracle 7,8,8i,9i OCP DBA
Centrex Consulting Corporation

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