From DeveloperWorks: Configuring IBM WebSphere Process Server V6.1 with an Oracle Database
Redpaper, published: Thu, 17 Jul 2008
This IBM® Redpaper publication explains how to configure IBM WebSphere® Process Server V6.1 to work with an Oracle® database.
There’s always a thin amount of documentation on integrating IBM products with non-DB2 databases. Here is a redpaper on using Oracle for WebSphere Process Server.