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scalar function

Posted on 2010-08-13
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Hi experts, i a readng about scalar function, but i don't understand the difference between
Inline ad Multi-statement (please give me a transanct code)
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Question by:enrique_aeo
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Expert Comment

by:Kevin Cross
ID: 33431679
That shouldn't matter for scalar functions. You should check the MSDN book online regarding CREATE FUNCTION and should clear this up for you as "scalar" functions are those that are returning a single value and so typically you are doing multiple lines of code and returning a specific value. Table functions are typically referred to as inline or multi-statement. See MSDN for the difference there, but think about singular SQL queries versus those needing multiple lines.
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by:enrique_aeo
ID: 33432833
I was reading about Table functions are typically referred to as inline or multi-statement, but i do not understand, for that reason I ask is help and better if with transact sql code
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vdr1620 earned 1000 total points
ID: 33432930
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Expert Comment

by:Kevin Cross
ID: 33433185
Okay, above you indicated "scalar" so it threw me off ... I gave you the hint though: "think about singular SQL queries versus those needing multiple lines." If you have a query that is a single select statement then you can simply return it "inline" to the return clause of the function definition. If you need variables or other multi-line constructs, then you will want to define that the function returns a table and then build the table up over the function body and then return final select.
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Author Closing Comment

by:enrique_aeo
ID: 33433191
perfect man
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