Undo Modes in 12.2 Multitenant Databases - Local and Shared Modes
(Doc ID 2169828.1)
Last updated on MARCH 17, 2020
Applies to:Oracle Database Cloud Service - Version N/A and later
Oracle Database - Enterprise Edition - Version 18.104.22.168 and later
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database 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 document explains the Undo modes introduced in 12.2 Release onwards.
This document explains the various modes of Undo available in the Multitenant database from 12.2 onwards.
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In this Document
|Undo Modes in Multitenant|
|Local Undo Mode|
|Shared Undo Mode|
|How to check the current Undo mode:|
|How to convert CDB from Local to Shared Undo Mode|
|How to convert CDB from Shared to Local Undo Mode|