I don't think it's possible , not because C2 is limited ( CC did it , C2 could do it with no problems ) but because of the browser
In fact , The browser doesn't allow you to load files from the drive for some security reasons ...
You could always search for a way to load databases using ajax ... ( Don't ask me , I'm a newb like you at those things :P )
Hope that helped ...
Cheers ...