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RANK() returns consecutive integers


RANK() returns consecutive integers

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Revenant
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cengland0 (1/6/2011)
There are several ranking functions:
. . . One row is still a non empty rowset but that was not explained in the provided explanation.


You are absolutely right. Thank you for pointing out this boundary case.

In my defense, I am still doing better than SQLS BOL which are not mentioning an empty set.

;-)
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Thanks for the question!
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Thanks for the question.



Jason AKA CirqueDeSQLeil
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toddasd
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Is it considered cheating that I went to the BOL before answering the question and read "If two or more rows tie for a rank, each tied rows receives the same rank."?

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toddasd (1/6/2011)
Is it considered cheating that I went to the BOL before answering the question and read "If two or more rows tie for a rank, each tied rows receives the same rank."?


I don't consider doing research and learning from it cheating.
I'm not going to memorize every feature, trace flag, syntax, dmv of SQL Server. If I need something, I'll look it up :-)


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Koen (da-zero) (1/6/2011)
toddasd (1/6/2011)
Is it considered cheating that I went to the BOL before answering the question and read "If two or more rows tie for a rank, each tied rows receives the same rank."?


I don't consider doing research and learning from it cheating.
I'm not going to memorize every feature, trace flag, syntax, dmv of SQL Server. If I need something, I'll look it up :-)

I agree! It's impossible to remember details of every command of every language.
:-)

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toddasd (1/6/2011)
Is it considered cheating that I went to the BOL before answering the question and read "If two or more rows tie for a rank, each tied rows receives the same rank."?


"Cheating" implies that this is a test - which it isn't. QotD is designed to do just this - get you looking into areas of SQL that you might not have been aware of. If you researched something, and learned from it, then mission accomplished.

Wayne
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I knew that Rank() skips the number if there is a tie but thought it's still consecutive number in a sense next available int number.
zymos
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The RANK Function is a pretty interesting topic and a great pick. Below is an great example too using the AdventureWorks200R2 database.

URL: http://msdn.microsoft.com/en-us/library/ms189798.aspx

Thank you for the question.
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