>
>!EMPTY( m.Confusion )
>
>
>Hi Jos.
>
>Ok, but you are a lucky person,
>EMPTY() cannot return NULL (a design bug for me),
>and therefore I can say that you know if your confusion is or not is empty.
>
>But the expression !EMPTY(m.confusion) is not applicable to all the persons,
>for some the value must return null.
>
>Fabio

mmm... :)

Fabio, I think test for empty() on numeric variable does not make sense unless variable has not been set, in which case isnull() would be better test. There is no empty numeric in the same way as an empty string, imo. All numeric values have meaning, none are empty. Confusion rules :)