create procedure sql

1CREATE PROCEDURE SelectAllCustomers @City nvarchar(30), @PostalCode nvarchar(10)
2AS
3SELECT * FROM Customers WHERE City = @City AND PostalCode = @PostalCode
4GO;

1IF OBJECT_ID ( 'Production.uspGetList', 'P' ) IS NOT NULL   
2    DROP PROCEDURE Production.uspGetList;  
3GO  
4CREATE PROCEDURE Production.uspGetList @Product varchar(40)   
5    , @MaxPrice money   
6    , @ComparePrice money OUTPUT  
7    , @ListPrice money OUT  
8AS  
9    SET NOCOUNT ON;  
10    SELECT p.[Name] AS Product, p.ListPrice AS 'List Price'  
11    FROM Production.Product AS p  
12    JOIN Production.ProductSubcategory AS s   
13      ON p.ProductSubcategoryID = s.ProductSubcategoryID  
14    WHERE s.[Name] LIKE @Product AND p.ListPrice < @MaxPrice;  
15-- Populate the output variable @ListPprice.  
16SET @ListPrice = (SELECT MAX(p.ListPrice)  
17        FROM Production.Product AS p  
18        JOIN  Production.ProductSubcategory AS s   
19          ON p.ProductSubcategoryID = s.ProductSubcategoryID  
20        WHERE s.[Name] LIKE @Product AND p.ListPrice < @MaxPrice);  
21-- Populate the output variable @compareprice.  
22SET @ComparePrice = @MaxPrice;  
23GO  
24