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RE: Oracle CBO question

Allen, Brandon

2007-07-05

Replies:

Yes, the tables are initially joined in order from lowest estimated cardinality to highest, but there are probably at least a few exceptions to this rule, such as queries with LEADING and ORDERED hints.
 
Regards,
Brandon

From: oracle-l-bounce@freelists.org [mailto:oracle-l-bounce@freelists.org] On Behalf Of Job Miller

There is intelligence to the order of evaluation I assume, so the options not considered I suspect are less likely to be better.  not sure about that though

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