Automatic Optimizer Statistics Collection Maintenance Tasks Does Not Work.
(Doc ID 1900018.1)
Last updated on MARCH 03, 2022
Applies to:
Oracle Database - Enterprise Edition - Version 11.2.0.3 and laterOracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
Symptoms
- The Automatic Optimizer Statistics Collection Maintenance Tasks "does not work"
- Automatic Optimizer Statistics Collection Maintenance Task is enabled
- However jobs do not actually run because the job duration is “0”:
- exec DBMS_AUTO_TASK_IMMEDIATE.GATHER_OPTIMIZER_STATS does not gather statistic either
Changes
none
Cause
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In this Document
Symptoms |
Changes |
Cause |
Solution |
References |