We did start a project like this to visualize within phpMyAdmin, but it never finished. You can see it at http://www.jgraph.com/demo/mxgraph/schema.html http://

We did start a project like this to visualize within phpMyAdmin, but it never finished. You can see it at http://www.jgraph.com/demo/mxgraph/schema.html http://www.jgraph.com/demo/mxgraph/schema.html. It's kind of a semi-schema editor, but would need work on the parsing bit.