Re: So what's null then if it's not nothing?

>> I think nulls may have been done to death in the literature. Date,
>> Darwen and Pascal have written reams on the matter (and convincingly so
>> - I don't think anyone would argue they are theoretically correct, just

>Yes. But the fact that this question arises again and again is an
>indication that something somewhere is wrong.

The education system is wrong.

>I think that one cause of the problem is that:
>- it is solved in theory in one way,
>- it is implemented in databases in another way,
>- these databases are used in the third way,
>- the problem domain needs some fourth solution

What we need is the application of the theory at vendor and user levels.

Anything else is a botch-up.

Regards
  Alfredo Received on Thu Nov 17 2005 - 14:01:17 CET