Different Execution Plan and Performance from Different Users When OPTIMIZER_SECURE_VIEW_MERGING is Enabled
(Doc ID 371581.1)
Last updated on MARCH 03, 2022
Applies to:
Oracle Database - Enterprise Edition - Version 10.2.0.1 and laterOracle Database Cloud Schema 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
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.
Applies to versions: 10.2, 11,2, 12C
Symptoms
- The same query can perform differently for different users
- On investigation the same query uses different access paths for different users
Changes
- Upgrade to 10.2.0.1 or later
- Enabling OPTIMIZER_SECURE_VIEW_MERGING
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |