When developing J2EE projects using WebSphere, is it effective to use the Oracle's JDBC file Classes12.zip file added in Server Profile -> Environment -> "Class Path"? I found that if the J2EE project is running in the Test server of the WSAD development tool, the JDBC file must be essential and the version must match the Oracle version used. But when using the WebSphere server to publish this application, you also need to add the shared library of Oracle Database JDBC. I don't know which place really works.
