Robert Abitbol Many years ago, in the glorious days of the pioneer DOS (we thought then Dos was the end of the world but by jolly! there was much more to come afterwards!), there was an amazing database software called Rapid File programmed in Forth (another amazing programming language).
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 very well 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.