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Difference between stored procedure and functions in SQL Server

Posted Date: 18 Jun 2008	Resource Type: Articles	Category: Databases
Author: Gaurav Agrawal	Member Level: Silver
Rating:	Points: 5

1. Functions are compiled and executed at run time.
Stored procedures are stored in parsed and compiled format in the database.

2. Functions cannot affect the state of the database which means we cannot perform insert,delete,update and create operations on the database.
Stored Procedures can affect the state of the database by using insert,delete,update and create operations.

3 Functions are basically used to compute values. We passes some parameters to functions as input and then it performs some operations on the parameter and return output.
Stored procedures are basically used to process the task.

4.Function can not change server environment and our operating system environment.
Stored procedures can change server environment and our operating system environment.

5.Functions can not be invoked from SQL Statements. Execute. SELECT
operating system can be invoked from SQL Statements. Execute. SELECT

6.Functions can run an executable file from SQL SELECT or an action query.
operating system use Execute or Exec to run

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