Hash Join Processing
(Doc ID 41954.1)
Last updated on MARCH 12, 2021
Applies to:Oracle Database - Enterprise Edition - Version 184.108.40.206 and later
Oracle 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.
This article explains some of the internal working of the Hash Join operation.
This article is aimed at users who are interested in discovering more about Hash Join processing
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In this Document
|Bitmap for unique join keys|
|Poorly Performing Hash Joins - What to do about them?|