On 11/12/13 19:34, Simon Riggs wrote:
Realistically, I never heard of an Oracle DBA doing advanced statistical mathematics before setting the sample size on ANALYZE. You use the default and bump it up if the sample is insufficient for the data.
I'm not sure that Oracle's stats and optimizer design is an example to be envied - pretty much all Oracle DBA's I've encountered will apply hints all queries to get the plan they want...
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