If you are debugging or running code that does not use a J2EE data source, the processes for running code in the two environments are similar and require only a few mouse clicks.
For details on server configuration, see Configuring WebSphere Application Server v5.x.
For details on updating the application deployment descriptor, see Setting up a server to test data sources for WebSphere Application Server v6.0. For details on using the Administrative Console, see Configuring WebSphere Application Server v6.x.
However you update the data-source information, your change is available to the server almost immediately.
Related concepts
Web support