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SQL Performance (MOSC)

Things to Consider Before Upgrading to Avoid Poor Performance, Wrong Results or SQL Plan Management

Jun 15, 2019 8:33PM edited Jul 27, 2019 5:01AM in SQL Performance (MOSC) 1 commentAnswered

This thread is for discussion and questions about recommended fixes in hopes of avoiding problems associated with performance and wrong results.The issue is discussed with great details in Things to Consider Before Upgrading to Avoid Poor Performance, Wrong Results or SQL Plan Management (SPM) Issues (11.2.0.X and above) (Doc ID 1904820.1).

Best Practices:

Although some problems may be unforeseen, in many cases problems may be avoidable if signs are detected early enough. Additionally, if an issue does occur, it is no use collecting information about that issue after the event. For information proactive preparations and diagnostics, see following notes:
- Best Practices: Proactively Avoiding Database and Query Performance Issues (

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