Hi Sorin,

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I would say that support for NULL is documented as: The functions that accept NULL values as parameters should propagate it to the result.
And VFP does that. The functions that do not accept NULL as parameter generate errors.
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Then, for me, VFP have a support of NULL partial.

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If in SQL Server all functions support NULL parameters, then all SQLServer functions should propagate NULL to the result.
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Then, for me, SQL Server have a support of NULL full.

But this is only my opinion.

Fabio