This stored procedure computes the total dollar amount of all the items in the given CartID. Used on the display of the Shopping Cart screen.
Definition:CREATE Procedure usp_ShoppingCartTotal ( @CartID nvarchar(50), @Culture nvarchar(10), @TotalCost nvarchar(20) OUTPUT ) AS SELECT @TotalCost = dbo.ConvertCurrency(SUM(P.ListPrice * SCI.Quantity), @Culture).ToString() FROM Sales.ShoppingCartItem as SCI, Production.Product as P WHERE SCI.ShoppingCartID = @CartID AND P.ProductID = SCI.ProductID;Database Tables Used:
ShoppingCartItem: The ShoppingCartItem table keeps track of the items a user has purchased. Its primary key is the ShoppingCartItemID field. The ShoppingCartID is a string which is used to identify the user who owns the basket of items. There is a many to one relationship between the ShoppingCartItem table and the Product table. Note that if not Quantity is supplied, a default of 1 is entered.
Product: The Product table contains the core information about all of the items for sale on the Adventure Works Cycles web site. Its primary key is the ProductID identity field.