Robert Abitbol Many years ago, in the glorious days of the pioneer DOS, there was an amazing database software called Rapid File programmed in Forth.
I suspect it was in fact a comma-delimited database therefore it was occupying close to nothing in terms of space. It was small, fast, elegant, innovative.
It was the kind of stuff RS would write.
See more here: http://c2.com/cgi/wiki?RapidFile (I wrote most of the text on that page).
I think Tcl/Tk would lend itself to such a database.
If anyone is interested in writing something similar in Tcl/Tk, let me know. My e-mail address is on my homepage.