Friday, June 29, 2018

Managing Cost-Based Optimizer Statistics for PeopleSoft

I gave this presentation to UKOUG PeopleSoft Roadshow 2018

PeopleSoft presents some special challenges when it comes to collecting and maintaining the object statistics used by the cost-based optimizer.

I have previously written and blogged on this subject.  This presentation focuses exclusively on the Oracle database and draws together the various concepts into a single consistent picture.  It makes clear recommendations for Oracle 12c that will help you work with the cost-based optimizer, rather than continually fight against it.

It looks at collecting statistics for permanent and temporary working storage tables and considers some other factors that can affect optimizer statistics.

This presentation also discusses PSCBO_STATS, that is going to be shipped with PeopleTools, and compares and contrasts it with GFCPSSTATS11.

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