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IF: Online Redefinition Tips And Tricks (Doc ID 2359350.1)

Last updated on MARCH 12, 2021

Applies to:

Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.

Purpose

This document is intended for presenting some tips and tricks that may give primary assistance to Oracle Database Administrators, when it comes to the Online Redefinition context.

Scope

 The contents of this document may be useful for Oracle DBAs and/or Support Engineers.

Details

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In this Document
Purpose
Scope
Details
 1. How Online Redefinition is useful?
 2. Master Note
 3. Original table size
 4. Large Object (LOB) size
 5. Free space requirement
 6. Before attempting to redefine a table online
 7. What if an online redefinition fails?
 8. New features in 12.2
References

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