sql create procedure code example
Example 1: create procedure sql
CREATE PROCEDURE SelectAllCustomers @City nvarchar(30), @PostalCode nvarchar(10)
AS
SELECT * FROM Customers WHERE City = @City AND PostalCode = @PostalCode
GO;
Example 2: procedure in sql
-Stored procedure is a group of SQL
statements that has been created
and stored in the database.
-A stored procedure will accept input
parameters so that a single procedure
can be used over the network by several
clients using different input data.
-A stored procedures will reduce
network traffic and increase the performance.
If we modify a stored procedure all the
clients will get the updated stored procedure.
Sample of creating a stored procedure
CREATE PROCEDURE test_display AS
SELECT FirstName, LastName FROM tb_test
EXEC test_display
Example 3: create proc
IF OBJECT_ID ( 'Production.uspGetList', 'P' ) IS NOT NULL
DROP PROCEDURE Production.uspGetList;
GO
CREATE PROCEDURE Production.uspGetList @Product varchar(40)
, @MaxPrice money
, @ComparePrice money OUTPUT
, @ListPrice money OUT
AS
SET NOCOUNT ON;
SELECT p.[Name] AS Product, p.ListPrice AS 'List Price'
FROM Production.Product AS p
JOIN Production.ProductSubcategory AS s
ON p.ProductSubcategoryID = s.ProductSubcategoryID
WHERE s.[Name] LIKE @Product AND p.ListPrice < @MaxPrice;
SET @ListPrice = (SELECT MAX(p.ListPrice)
FROM Production.Product AS p
JOIN Production.ProductSubcategory AS s
ON p.ProductSubcategoryID = s.ProductSubcategoryID
WHERE s.[Name] LIKE @Product AND p.ListPrice < @MaxPrice);
SET @ComparePrice = @MaxPrice;
GO
Example 4: sql server 2012 create or alter procedure
IF OBJECT_ID('spCallSomething') IS NULL
EXEC('CREATE PROCEDURE spCallSomething AS SET NOCOUNT ON;')
GO
ALTER PROCEDURE spCallSomething ...