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    Question :
    What is built-in function? Explain its type i.e. Rowset, Aggregate and scalar
    Category Data Mining Interview Questions
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    Added on 6/15/2011
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    A built in function of sql is used for performing calculations. These are standard functions provided by sql.

    Aggregate functions: these functions perform calculation on a column and return a single value. Example: AVG(), SUM(), MIN(), MAX()

    Scalar functions : these functions perform calculation on an input value and return a single value. Example: ROUND(), MID(), LCASE(), UCASE()

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