After you complete the Pre-Upgrade Steps, all models and mining metadata are fully integrated with the Oracle Database upgrade process — whether you are upgrading from 11g or from 10g releases.
Upgraded models continue to work as they did in prior releases. Both upgraded models and new models that you create in the upgraded environment can make use of the new mining functionality introduced in the new release.
To upgrade a database, you can use Database Upgrade Assistant (DBUA) or you can perform a manual upgrade using export/import utilities.
See Also:
Oracle Database Upgrade Guide for complete database upgrade instructions