You are effectively asking questions on how to use Dreamweaver here.
However, the good folks at WA have written documentation to help newbies out.
For example - a quick search on Google for how to setup a Dreamweaver data source returned:
I urge you to go and learn the basics on how a web site with data source is put together. After all, if you are writing web apps for your clients shouldn't you know how they work in order to be able to support them?
Remember - Google is your friend :-)