Why Dynamic Sampling is Used Even with 100% Good Statistics On All Tables
(Doc ID 2237208.1)
Last updated on JANUARY 30, 2019
Applies to:Oracle Database - Enterprise Edition - Version 184.108.40.206 and later
Oracle Database - Standard Edition - Version 220.127.116.11 and later
Oracle 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
Information in this document applies to any platform.
- Dynamic Sampling is done when OPTIMIZER_DYAMIC_SAMPLING is set to 2 even after gathering 100% statistics on all tables and indexes involved in the query
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!
In this Document