As of now, to use a database in my application(mySQL for example) I download the driver .jar file add it to my classpath and everything works great. I was wondering what happens when you add the driver through the runtime tab in Netbeans? Is this the proper way to use databases? Once I connect to it what can I do? Bascially I'm looking for an explantion of this feature. I looked in the help file, but all I got was a how-to, not a why.