Automatic Degree of Parallelism in 11.2.0.2
(Doc ID 1269321.1)
Last updated on NOVEMBER 07, 2023
Applies to:
Oracle Database - Enterprise Edition - Version 11.2.0.2 to 11.2.0.4 [Release 11.2]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
In 11.2.0.2 Automatic Degree of Parallelism can only be used if I/O statistics are gathered.
Scope
For DBAs
The AutoDOP is not a feature to use more parallelism. It is a feature that restricts the parallel to maximize throughput,
so it is expected that with AutoDOP not all queries will run in parallel and the ones that do run in parallel may not run with full parallelism, as this is the technical specifications of the feature.
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In this Document
| Purpose |
| Scope |
| Ask Questions, Get Help, And Share Your Experiences With This Article |
| Details |
| IO Calibration |
| Tuning Parameters |
| References |