Resource Manager And Parallel Query - How Does It Work? (Doc ID 464057.1)

Last updated on DECEMBER 06, 2016

Applies to:

Oracle Server - Enterprise Edition - Version: 9.2.0.4 to 11.1.0.6
Information in this document applies to any platform.

Goal

Q1: How does Oracle handle the following case?
Resource manager plan is setup to prevents any parallel query operations, while parallel query is not disabled on the database level. However, the Cost Based Optimizer (CBO) generates a parallel plan (as seen in v$sql_plan).

Q2: Did the way Oracle handle this case change from 9i to 10g?

Q3: Is it recommended to use the resource manager to prevent parallelism while not disabling parallel query on the database level?

Solution

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