>>I doubt if such a utility exists. It'd be extremely difficult to do.
>
>yeah but curiously enough, I've been hit with this question once or twice a year for years now.

Oh, I've seen it too. Think, however, of having to do a LOCATE on multiple fields for every record in one of the tables. Optionally, an SQL statement might work, but again, you'd have to execute one for each record in one of the tables. Now if there was a common key that was indexed, it gets easier. Still, it would take an awful lot of code to do genericly.