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Random problems

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Jeff Moden
Jeff Moden
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christian_nowicki (6/10/2009)
Peso (6/9/2009)
And it's also well established that

ABS(CHECKSUM(NEWID())) % 100

gives random numbers between 0 and 99 with very high, good and even distribution.


I like this solution - it is simpler than the one I proposed.


Well done, Chris! Takes a hell of a good person to say such a thing in the discussion of their own article. There should be more like you.

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

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benoit.rocco
benoit.rocco
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Hello, I've found this article very interesting but I can't find the Row_Number() function. Is it part of SQL Server 2k8 (I've only 2k5) ?
SwePeso
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ROW_NUMBER() was introduced with SQL Server 2005 and need the compatibiity level set to 90 or higher.


N 56°04'39.16"
E 12°55'05.25"
benoit.rocco
benoit.rocco
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Thank you very much for your answer but I already found the response. I deleted my message but apparently it didn't work.
Jeff Moden
Jeff Moden
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benoit.rocco (6/11/2009)
Thank you very much for your answer but I already found the response. I deleted my message but apparently it didn't work.


Cool. Tell us what it was. Two way street here. ;-)

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

Helpful Links:
How to post code problems
How to post performance problems
Forum FAQs
benoit.rocco
benoit.rocco
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I was using SQL Server Management Studio, but connected to a SQL2000 server, it's for that reason the function ROW_NUMBER() didn't exist ^^
Jeff Moden
Jeff Moden
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benoit.rocco (6/13/2009)
I was using SQL Server Management Studio, but connected to a SQL2000 server, it's for that reason the function ROW_NUMBER() didn't exist ^^


Ah... thank you Benoit. That would certainly do it.

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

Helpful Links:
How to post code problems
How to post performance problems
Forum FAQs
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