in reply to graphviz, perl and sql2dot ?

You need the SQL Fairy (Is there any script to translate a simple SQL script to an ER diagram?, Re: Normalisation Question (OT but trust me, perl implementation)).

MJD says "you can't just make shit up and expect the computer to know what you mean, retardo!"
I run a Win32 PPM repository for perl 5.6.x and 5.8.x -- I take requests (README).
** The third rule of perl club is a statement of fact: pod is sexy.