Hi jasajona,

>> So your conclusion is that we both have the same amount of money in
>> our wallets, since we both have NULL....

> How do you know that we have not equal amount? :)

He doesn't (nor does he pretend so), and that's why the outcome is not
FALSE but NULL - which means UNKNOWN, as you know.

> exception would be logical way to react to such situation.

No, understanding of Null is all it takes. "Unknown" is not an
exceptional outcome.


Greetings,
Paul Vinkenoog