If you have a Business Components application that you have configured for a switchable scenario,
Change the libraries in the JDeveloper IDE.
If you are connecting to Oracle8i, choose JBO Oracle Domains.
If you are connecting to a foreign database, chose JBO Generic Domains.
Change the connection.
In the Navigation pane, right click your business components project node and chose Edit.
On the Connection page, select your other connection from the Connection drop down box.
Click Finish.