RE: Creating Histograms
- From: "Juan Carlos Reyes Pacheco" <jreyes@xxxxxxxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 21 Jul 2004 14:47:44 -0400
Hi David, then how do you get cbo uses the histogram and do a full scan,
when this is more than 90% of the data
changing the optimizer index parameter?
If you can't get CBO use the histogram by himself, you get nothing.
-------Original Message-------
From: oracle-l@xxxxxxxxxxxxx
Date: 07/21/04 14:26:32
To: oracle-l@xxxxxxxxxxxxx
Subject: RE: Creating Histograms
Unless I'm mistaken I believe the concensus on here is that a higher cost
does not necessarily indicate a poorer plan.
Just wanted to point that out in reference to the cost being higher
mentioned below...+
--
.
David
> But it seems not to be, a full scan cost 40 more, so it seems this is not
> a
> good place to use histograms.-
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