Re: 3 value logic. Why is SQL so special?
From: Bob Badour <bbadour_at_pei.sympatico.ca>
Date: Wed, 20 Sep 2006 03:00:55 GMT
Message-ID: <H92Qg.29656$9u.281424_at_ursa-nb00s0.nbnet.nb.ca>
>
>
> Just to confirm that I understand the method to avoid NULLs, let's take
> this example:
Date: Wed, 20 Sep 2006 03:00:55 GMT
Message-ID: <H92Qg.29656$9u.281424_at_ursa-nb00s0.nbnet.nb.ca>
>>NULL confuses reasonably intelligent people because it breaks important >>identities those people have been conditioned to expect such as:
>
>
> Just to confirm that I understand the method to avoid NULLs, let's take
> this example:
[snip]
> Okay, we do not have any of the problems associated with NULLs here,
> but my point is not the problems with NULLs (as you say they are
> well-documented), but the overhead inccurred when avoiding NULLs. Am I
> correct that this would be the way to avoid NULLs?
No, you are not. Received on Wed Sep 20 2006 - 05:00:55 CEST