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Wednesday, April 20, 2011

Stored Procedure vs User Defined Functions.

Functions :  
  • Can be used with Select statement. 
  •  Not returning output parameter.
  • Returns table variables.  
  • You can join UDF. 
  • Functions are compiled and executed at run time.  
  • Functions cannot affect the state of the database.  
  • Function can not change server environment.

Stored Procedure: 

  • Have to use EXEC or EXECUTE.
  • Return output parameter.
  • Won’t return Table Variables 
  • You can not join SP.
  • Stored procedures are stored in parsed and compiled format in the database. 
  • Stored Procedures can affect the state of the databases
  • Stored procedures can change server environment

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