The R12.2 Apps DBA class covers topics to familiarize DBAs with the following topics:
R12.2 Online Patching
R12.2 and the Weblogic Server
R12.2 System Administration
This is a four day class and is a great introduction to R12.2. This is a pre-requisite for DBAs, that are not familiar with the Oracle E-Business suite, before they take the R12.2 Technical Upgrade class.