RE: Creating Histograms

  • From: "Juan Carlos Reyes Pacheco" <jreyes@xxxxxxxxxxxxxxxx>
  • To: <oracle-l@xxxxxxxxxxxxx>
  • Date: Wed, 21 Jul 2004 16:29:29 -0400

 Based in my few experience in histograms I decided to run this command
EXEC DBMS_STATS.GATHER_SCHEMA_STATS( OWNNAME=>'DAZ', ESTIMATE_PERCENT=>100
METHOD_OPT=>'FOR ALL COLUMNS SIZE SKEWONLY');
with the only goal of giving more information to CBO-
I didn't tested if this really gives a improvement, but I read something in
some place that says it does.
I don't remember where.
 
Any comment about the previous command?
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