How I do sql designer

Question

I want to make sql designer that relate tables with drag and drop method like MS SQL management studio.  Pls Help me. 

 

For Example:

Answer 1

Is there a "real good" reason to reinvent the wheel?

 

I guess, what you really need is an expert level graphics coding capabilities. Something similar to what game developers have (not that much though!).

 

Typical 'business application developer' doesn't have much of these expertise (like me). If you have that expertise then go ahead. I guess graphical designer is the only challenging part, rest all is very simple.