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After Upgrade to 12c from 11g, Query Uses Nested Loop Instead Of Merge Join, Causing Slow Performance (Doc ID 2250039.1)

Last updated on JANUARY 15, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 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
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

Changes

 Upgraded from 11.2.0.4 to 12.1.0.2

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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