How to Use _PX_TRACE to Check Whether Parallelism is Used (Doc ID 400886.1)

Last updated on MARCH 27, 2014

Applies to:

Oracle Server - Enterprise Edition - Version: 9.0.1.4 to 11.1.0.6 - Release: 9.0.1 to 11.1
Information in this document applies to any platform.

Goal

This article outlines how to setup parallel execution tracing using _PX_TRACE to determine why parallelism is not being used for a particular query or set of queries.

Solution

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