Statistics Not Gathered on Large Tables by Automatic Statistic Job
(Doc ID 1679988.1)
Last updated on FEBRUARY 14, 2019
Applies to:
Oracle Database - Enterprise Edition - Version 11.2.0.2 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
- Statistics on large tables are out of date have not been gathered for a long period of time. Other criteria for collection of statistics are met, for example, stale percentage exceeds the high threshold. The select below shows an old date for Last_Analyzed and value > 10% for stale percent:
- Inaccurate statistics may manifest itself in the generation of sub-optimal plans for queries involving these large tables
- Statistics are gathered automatically in the maintenance window and complete successfully
Changes
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |