DMU - Tips and Tricks - Migration Assistant for Unicode

By Mike Dietrich-Oracle on May 30, 2016

Please find previous posts about the Data Migration Assistant for Unicode (DMU) here:

We included the DMU into our slide deck a while ago:

Upgrade, Migrate & Consolidate to Oracle Database 12c

DMU 2.1 is available (June 2, 2015)
https://blogs.oracle.com/UPGRADE/entry/migrating_to_unicode_get_dmu

Since Roy and I subscribed to the Hot Topics support email we'll find a very helpful note none of us was aware of almost every second day.

One of these recent finds is:

• MOS Note:2018250.1
  Tips and Known Issues - Database Migration Assistant for Unicode (DMU) 2.1

For those who have never heard of the DMU before you'll find a very brief overview about this tiny little - and very helpful - tool for database character set migrations not only to Unicode here: 

• http://www.oracle.com/technetwork/database/database-technologies/globalization/dmu/overview/index.html

Why is this note so helpful?

Simply because it combines the most important topics about DMU in one note - from starting to issues. And this is really helpful when you plan to use the tool.

It is structured into:

• A) Things to check before using the DMU
• B) FAQ and common issues
• C) Problems starting the DMU or during scan
• D) Typical errors such as "invalid binary conversion" and others
• E) Post conversion phase
• F) Steps to do afterwards
• plus some extras

출처 : https://blogs.oracle.com/UPGRADE/entry/dmu_tips_and_tricks_migration