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Why I cannot search a NULL value ? BUG ?
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Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Divers
Thread ID:
00824792
Message ID:
00824925
Vues:
20
>Hi David,
>
>>There is no need for the VFP team to change anything about its null model, it works exactly like it should. I am defending its currently correct behavior.
>
>I hope VFPT see where you dont see.
>
Fabio,

What David said is exactly right. NULL = NULL can never be true simply because NULL cannot in any way be evaluted. That's why ISNULL() exists. If no evaluation can be performed, how can the expression be resolved? Answer: It can't.
George

Ubi caritas et amor, deus ibi est
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