hi listers
We are migrating from 11g to 12.2
And as part of performance testing we found that few plans regressed and I
tried to copy the plan from 11g using spm .
Spm is getting used but plans are different and run times are bad still.
Same is the case by using ofe of 11.2.0.4 .
Don’t see any helpful notes on mos for the steps I should take to resolve
why plans are not same . And there is no single common difference in the
plans which is causing this issue .
So wanted to know what your methodology in finding why spm is not using the
same plan . Same is the case with sql profile and it getting used
my question is more in general and not query specific .
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Cheers,
Kunwar
