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When is .NULL.= .NULL.?
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Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Divers
Thread ID:
00398289
Message ID:
00398351
Vues:
25
>>No, it will evaluate as .NULL. Any comparison with .NULL. returns .NULL. This is because there is no meaningful comparison to be made, since .NULL. has no value or data type. This is not the same as EMPTY() which can be applied to various data types.
>
>George,
>
>One minor correction, NULL does have a data type. It is NILL that has no data type and VFP doesn't support he value of NILL.

JimB,

Yep, I always forget that one. Should've said "no FoxPro data type". Tend to think too much some times in VFP terms rather than broader ones. Thanks for the heads up.
George

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