Eclipse doesn't "run" databases. It doesn't connect to databases. For that, you either need a plugin that connects to databases such as the Database Explorer, or an database-using application, which means either a stand-alone
Java app, a webapp, or something similar (a 2-tier
applet, for example. But that's not recommended).
So just to begin with, how could we show an example, when we don't even know
why you want to "connect Eclipse and Oracle"?