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Home -> Community -> Usenet -> c.d.o.server -> Re: Comparing plans across instances
hasta_l3_at_hotmail.com wrote:
> Dear group,
>
> Do you know of a tool which collects and compare the execution plans of
> a set of sql statements across Oracle database - perhaps of different
> releases ?
>
> We want to make sure that our plans do not change between O8 and O9.
>
> More generally, how do you ensure the stability of plans across O8 and
> O9 (with the rule based optimizer) ?
No but I do know that there is a very high liklihood that they will change across versions unless you carefully follow Jonathan Lewis' advice on fully hinting.
-- Daniel Morgan University of Washington Puget Sound Oracle Users GroupReceived on Sat Sep 23 2006 - 11:10:06 CDT
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