>>>>All in all, they're really the same thing.
>>>
>>>No, your code is not the same as Dmitry's and it doesn't test all conditions.
>>
>>How so?
>
>You're right, actually, I just realised that (wanted to update my reply, but it was too late) and made a quick test. It is indeed the same and it's better, though perhaps still not obvious and ISNULL tests would be more transparent (or some comments may help).
This means that you and I should close UT and get some life <bg>.
"The creative process is nothing but a series of crises." Isaac Bashevis Singer
"My experience is that as soon as people are old enough to know better, they don't know anything at all." Oscar Wilde
"If a nation values anything more than freedom, it will lose its freedom; and the irony of it is that if it is comfort or money that it values more, it will lose that too." W.Somerset Maugham
