RE: Know of any downloadable histogram viewers for Oracle?
- From: "Christian Antognini" <Christian.Antognini@xxxxxxxxxxxx>
- To: <sac@xxxxxxxxxxxxx>
- Date: Fri, 4 Aug 2006 21:32:34 +0200
Charles
> Reading the abase website, Cassandra sounds like an amazing tool.
> Although, a few more features than we are interested in, their
philosophy
> sounds... sound. However, I am skeptical of their claim:
>
> "Generating statistics for very large and heavily used tables with
> Oracle's analyze command can take anything up to several hours
depending
> on the size and usage of the table being analyzed. With Cassandra,
those
> statistics can be calculated within minutes."
>
> How can you do that without sampling? And once you start sampling, you
> introduce the possibility of error.
On large tables there's a very easy way to do it without sampling:
parallelization.
Cheers,
Chris
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