Hi Subodh,
The virtual database (VDB) will look, taste, feel and smell like a regular database! Your connection string to the database will be a regular one and your applications and middleware will not notice any difference. In fact, you can have your developers and testers prepare multiple branches or versions of the same database and switch between them using a self service web UI (that we call a data pod) without needing to change the connection string at all.
Many customers when testing out the VDB capability don't actually tell their development teams to see if anyone notices the difference, so your other technologies won't notice either. You will just empower people to work smarter and faster!
Regards,
Gary