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Question of the Day for 22 Dec 2006


Question of the Day for 22 Dec 2006

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Site Owners
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SSChampion
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Comments posted to this topic are about the Question of the Day for 22 Dec 2006 posted at http://www.sqlservercentral.com/testcenter/qod.asp?QuestionID=927.
Ninja's_RGR'us
Ninja's_RGR'us
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So may I ask what is the point of using that operator at all?
Steve Jones
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Fill a QOD slot?

Not sure myself, but probably better programmers that I have some use for it. Or maybe it's just the math PhD in Redmond wanted to get the entry in BOL?

Maybe I'll ask what the Unary operator is next year and it will be worth 12 pts.

I thought ninjas liked those obscure facts?!?!

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Ninja's_RGR'us
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I do, that's why I ask the question. I read the books online section for unary operator and that doesn't clear it up much.

I'm sure there must be a valid use for it but I just don't see it.


Jeff Gray
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It's there to confuse. I once had a problem where the programmer used =+ where he meant += in some c# code.

That was a hard one to find, because it was syntactically correct.

Hey, do ninjas do Christmas? If so, have a merry one!

And the same to you, Steve.

jg


Ninja's_RGR'us
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Thanx for the info. merry xmas to you to!
Airbourne
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Just as a note, you don't have to use ABS to get the positive value for a negative, use
declare @i int
select @i = -5
select -@i
HardCoder
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It just doing simple mathmetical expression,
For ex -
declare @i int
select @i = -5
select @i*@i

Answer = 25

declare @i int
select @i = 5
select @i*-@i

Answer = -25

declare @i int
select @i = 5
select -@i*-@i

Answer = 25

Mohammad Irfan
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kapil_kk
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nice question and nice explanation by Hardcoder :-)

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