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SET Functions


SET Functions

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karthik.nallajalla
karthik.nallajalla
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Comments posted to this topic are about the item SET Functions
arup chakraborty
arup chakraborty
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The question is a bit ambiguous
Jamie-2229
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Good one.

Jamie
Lynn Pettis
Lynn Pettis
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Actually, it seemed quite obvious to me and have never used the option personally.

Cool
Lynn Pettis

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webrunner
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Good question (though I got it wrong Sad). The only quibble I have with the formatting is the use of the term "function(s)" in the question.

The "(s)" doesn't make sense in that context, since only 1 function choice is possible with radio buttons.

Thanks,
webrunner

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Tim Wilson-Brown
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webrunner (2/6/2009)
Good question (though I got it wrong Sad). The only quibble I have with the formatting is the use of the term "function(s)" in the question.

The "(s)" doesn't make sense in that context, since only 1 function choice is possible with radio buttons.


Also, SET FMTONLY is a 'setting' not a 'function' - for those who like their terminology Smile
Anipaul
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Good question...Smile



gyanp.garg
gyanp.garg
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I think FMTONLY Executes query. as i came to know from earlier comments, FMTONLY returns meta data without processing any row how can it estimate the query response. please clear my doubts.
Tim Wilson-Brown
Tim Wilson-Brown
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SET FMTONLY generates metadata using the structure of the query - metadata can be derived from the types of constants, columns, or expressions.

In the case of stored procedures, which aren't typed, SET FMTONLY needs to execute the SP in order to determine the metadata. This may also be true for inline table-valued functions - but I'm not sure.

If you need more information, check out SQL Server books online at http://msdn.microsoft.com/en-us/library/ms173839.aspx or post a question in the general T-SQL forums.
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