I'm really impress by jsfiddle.net where we get to try out html/css/js right in front of us.  

Does anyone know of a similar set of screens for sql where you could get to try out commands and build tables in a similar 'virtual' environment.  

Of course I would like it to support all the different flavors too - mySQL, SQLserver, DB2, Oracle, Postgres, etc. And each of their various versions too please (yes I am smiling and really wishing here).