Hi,

I've seen in some documents that UDF:s can't take NULLs as input and
can't return NULLs. But then I've seen indications in other places of
UDF:s doing exactly that.

So what's the deal?

(I would write my UDF:s, if any, in Delphi 7.)

Thanks,
Kjell
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Kjell Rilbe
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