My Oracle Support Banner

What does it Mean if Disabling an Optimizer Specific Parameter Avoids a Performance Problem Detected After an Upgrade? (Doc ID 1507909.1)

Last updated on JUNE 15, 2021

Applies to:

Oracle Database - Enterprise Edition - Version 10.1.0.2 and later
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.


Purpose

 Outline how changing optimizer parameters that control new features may be an indication of statistics problems rather than problems with the feature.

Scope

 Users who have upgraded and encounter performance issues.

Details

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!


In this Document
Purpose
Scope
Details
References

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.