SQLEditor works very well, although a single license costs $79. Try out the trial. One awesome thing about it that it can parse a SQL dump of your existing data

SQLEditor works very well, although a single license costs $79. Try out the trial. One awesome thing about it that it can parse a SQL dump of your existing database and create a visual model of the structure. http://www.malcolmhardie.com/sqleditor/ http://www.malcolmhardie.com/sqleditor/