RE: why did query behavior change ?
- From: "Allen, Brandon" <Brandon.Allen@xxxxxxxxxxx>
- To: "eglewis71@xxxxxxxxx" <eglewis71@xxxxxxxxx>, "Oracle-L@xxxxxxxxxxxxx" <Oracle-L@xxxxxxxxxxxxx>
- Date: Wed, 8 Dec 2010 15:31:42 -0700
Probably a change in the execution plan - maybe due to a change in stats,
parameters, or bind variables. Check AWR or statspack to see when and how the
plan changed and different bind variable values that have been used. Check
stats history to see if there was a corresponding change in stats. Check alert
log and change log to see if parameters were changed. Check 10053 trace to see
why optimizer is choosing the current plan.
Regards,
Brandon
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