RE: density calculation when histograms are involved

  • From: "Alvaro Jose Fernandez" <alvaro.fernandez@xxxxxxxxx>
  • To: <exriscer@xxxxxxxxx>, "oracle-l" <oracle-l@xxxxxxxxxxxxx>
  • Date: Thu, 13 Sep 2007 19:55:49 +0200

Hi Cheng,

 

Recommend you to read:

 

1st: Wolfgang's
http://www.centrexcc.com/Histograms%20-%20Myths%20and%20Facts.pdf

 

2nd: Alberto Dell'Era "Join over Histograms" paper :
http://www.adellera.it/investigations/join_over_histograms/JoinOverHisto
grams.pdf  (covering much more complex cases)

 

regards.

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