Differences between Stored Procedures and Functions

05 Apr
  • Procedure can return zero or n values whereas function can return one value which is mandatory.
  • Procedures can have input/output parameters for it whereas functions can have only input parameters.
  • Procedure allows select as well as DML statement in it whereas function allows only select statement in it.
  • Functions can be called from procedure whereas procedures cannot be called from function.
  • Exception can be handled by try-catch block in a procedure whereas try-catch block cannot be used in a function.
  • We can go for transaction management in procedure whereas we can’t go in function.
  • Procedures can not be utilized in a select statement whereas function can be embedded in a select statement.
  • UDF can be used in the SQL statements anywhere in the WHERE/HAVING/SELECT section where as Stored procedures cannot be.
  • UDFs that return tables can be treated as another rowset. This can be used in JOINs with other tables.
  • Inline UDF’s can be though of as views that take parameters and can be used in JOINs and other Rowset operations.

Posted by on April 5, 2013 in SQL


2 responses to “Differences between Stored Procedures and Functions

  1. Sumit

    April 5, 2013 at 8:57 am

    Good Start………

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