Miles Neale (4/30/2013)
Hugo,Question if you have time.
<furthernitpicking>
Not NULL - Unknown. Is unknown also called uninitialized?
</furthernitpicking>
Just wondering?
This will cost you more time than it'll cost me! 😛
Short answer: no.
Long answer:
1. NULL - The database's black hole
2. The logic of three-valued logic
3. Dr. Unknown, or how I learned to stop worrying and love the NULL
4. What if null if null is null null null is null?
Enjoy! 😉