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Group by x,x,x with rollup works, group by rollup (x,x,x) doesn't 2005

I'm trying to use the rollup function. The sql server 2005 manual states that 'with rollup' is not ISO standard, and will be removed, don't do any development work with this format, by which I presume they mean use the 'group by rollup' function. They give the example code below in the documentation

SELECT a, b, c, SUM ( <expression> )
FROM T
GROUP BY ROLLUP (a,b,c);

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I have tried this and it returns

Msg 195, Level 15, State 10, Line 3
'ROLLUP' is not a recognized built-in function name.

The database is set to level 90 (SQL 2005)

I am probably going to go with using 'with rollup' for now, but just want to check that the SQL documentation is actually wrong for this function. Or do I need to check for patches to the SQL server engine?
 
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PCIIain
Asked:
PCIIain
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
what is the database compatibility version of your database?
if it's set to 80 (sql 2000), it will indeed pretend not to know that function ...
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PCIIainAuthor Commented:
Nope, SQL Server 2005 (90)

it works with 'group by x,x,x with rollup' which is set to be removed from SQL server (I don't think 2000 will work with 'with rollup' either will it?), it's the group by rollup (x,x,x); that fails.

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Guy Hengel [angelIII / a3]Billing EngineerCommented:
actually, I have gone through the documentations, and found that the ROLLUP operator is only as from sql 2008:

sql 2005 doc:
http://msdn.microsoft.com/en-us/library/ms177673%28v=SQL.90%29.aspx
you have the GROUP BY xxx WITH ROLLUP  (or WITH CUBE)

sql 2008 doc:
http://msdn.microsoft.com/en-us/library/ms177673%28v=SQL.100%29.aspx
you have the ROLLUP operator

not sure where I read previously that the rollup operator would be available in SQL 2005 also...
in the Analytics Server eventually...

so, in short: the answer is: not available in sql 2005
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