SQL Server- Difference between View and Stored Procedure

Introduction:

Here I will explain difference between SQL SERVER view and stored procedure in SQL Server 2008.  

Description:

In previous posts I explained difference between wcf and web application, interview questions in asp.net, sql server, c#, Difference between functions and stored procedures in SQL Server, difference between len and datalength in sql server and many articles relating to SQL Server. Now I will explain the differences between SQL view and stored procedures.

View in SQL Server

A view represents a virtual table. By using view we can join multiple tables and present the data as coming from a single table.

For example consider we have two tables

      1)    UserInformation table with columns userid, username

      2)    SalaryInformation table with columns salid, userid, salary

Create VIEW by joining above two tables

CREATE VIEW VW_UserInfo AS BEGIN SELECT a.userid,a.username,b.salary from UserInformation a INNER JOIN SalaryInformation b ON a.userid=b.userid END

By using above view we can get username or salary based on userid for that we need to create procedure like as shown below

CREATE PROCEDURE GetUserInfo @uid INT AS BEGIN SELECT username from VW_UserInfo WHERE userid=@uid END

If you observe above procedure it’s like getting username from single table (VW_UserInfo) by passing userid

Stored Procedure

A stored procedure is a group of sql statements that has been created and stored in the database. Stored procedure will accept input parameters so that a single procedure can be used over the network by several clients using different input data. Stored procedure will reduce network traffic and increase the performance. If we modify stored procedure all the clients will get the updated stored procedure

Sample of creating Stored Procedure

USE AdventureWorks2008R2; GO CREATE PROCEDURE dbo.sp_who AS     SELECT FirstName, LastName FROM Person.Person; GO EXEC sp_who; EXEC dbo.sp_who; GO DROP PROCEDURE dbo.sp_who; GO

For more information check this Stored procedure in SQL Server

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