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Sunday, 23 September 2012

Difference between Stored Procedure and Function in SQL.


Today i am going to explain difference between SP and UDF which is most common interview question.


Stored Procedure (SP)
Function (UDF – User Defined Function)
SP can return zero , single or multiple values.
Function can return one value which is mandatory.
We can use transaction in SP.
We can’t use transaction in UDF.
SP can have input/output parameter.
Only input parameter.
We can called function from SP.
We can’t call SP from function.
We can’t use SP in SELECT/ WHERE/ HAVING statement.
We can use UDF in SELECT/ WHERE/ HAVING statement.
We can use exception handling using Try-Catch block in SP.
We can’t use Try-Catch block in UDF.


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