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STUFF Function


STUFF Function

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Danny Ocean
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Comments posted to this topic are about the item STUFF Function

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Vinay Kumar
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Koen Verbeeck
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Euh... wut?
Is it me and I'm going blind, but aren't the first and the second answer exactly the same?
The second and the third resultset are just swapped around (and why would you do that?)

Why put the third resultset before the second resultset in 3 of the 4 answers?

And the explanation doesn't mention why inserting NULL in another string doesn't result in NULL, but in an empty space instead.

But thanks for the effort :-D


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Thanks for the question. interesting to know the null is treated differently in the function.

In regards to answer A and B being the same, I think it's because of copy and paste and forgetting to swap the numbering. I decided to go for the order as it appears and got it right :-D


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srikant maurya
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Easy question ,
Srikant
Carlo Romagnano
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Koen Verbeeck (5/16/2011)
And the explanation doesn't mention why inserting NULL in another string doesn't result in NULL, but in an empty space instead.

I am curious: bol does not mention the case the last parameter is NULL. Maybe a BUG? :-)

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Thanks for the question

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... made easier by the strange set of answers.
Toreador
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Koen Verbeeck (5/16/2011)
And the explanation doesn't mention why inserting NULL in another string doesn't result in NULL, but in an empty space instead.


That's what got me.
Surely it's a bug?
select 'Vinay, ' + NULL + ', Amit'
returns NULL, so I'd have thought
select STUFF('Vinay, Vijay, Amit',8,5,NULL)
should do the same?
Koen Verbeeck
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Carlo Romagnano (5/17/2011)
Koen Verbeeck (5/16/2011)
And the explanation doesn't mention why inserting NULL in another string doesn't result in NULL, but in an empty space instead.

I am curious: bol does not mention the case the last parameter is NULL. Maybe a BUG? :-)


It might be :-)
Or just some lazy documentation writers at BOL :-D


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Koen Verbeeck (5/16/2011)
Euh... wut?
Is it me and I'm going blind, but aren't the first and the second answer exactly the same?
The second and the third resultset are just swapped around (and why would you do that?)

Why put the third resultset before the second resultset in 3 of the 4 answers?

And the explanation doesn't mention why inserting NULL in another string doesn't result in NULL, but in an empty space instead.

But thanks for the effort :-D


My thoughts exactly. I just went for the answers that were in the correct order.
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