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Home -> Community -> Mailing Lists -> Oracle-L -> Re: system stats (9205) - can they go stale?
Teehan, Mark wrote:
>Is there any way to tell if the optimizer has suddenly decided that it doesnt like the contents of sys.aux_stat$ any more?
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Optimizer is not a PHB. Do 10053 or do "select * from
table(DBMS_XPLAN.DISPLAY)" or do @?/rdbms/admin/utlxplp and you'll
have a line which contains string "CPU costing" which can be in 3
states: On, Off or "Intel Inside". If your optimizer tells you that
the CPU costing is on, then it uses the system statistics.
-- Mladen Gogala Oracle DBA -- http://www.freelists.org/webpage/oracle-lReceived on Thu May 26 2005 - 09:38:47 CDT
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