Query with No/Deleted Statistics performs better than query with Statistics
(Doc ID 190878.1)
Last updated on MAY 15, 2024
Applies to:
Oracle Database - Enterprise Edition - Version 6.0.0.0 and laterOracle Database - Personal Edition - Version 7.1.4.0 and later
Oracle Database - Standard Edition - Version 7.0.16.0 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.
Purpose
Clarify some of the confusion and misinvestigation of issues where queries run better without optimizer statistics because the optimizer chooses
a sub-optimal plan from the gathered stats.
Details
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