View of Order Details with Total Amount Per Row
View of Order Details with Total Amount Per Row
Orderdetails Table:
Query Explanation:
-
CREATE VIEW orderdetailswithtotalamount: This creates a new view named
orderdetailswithtotalamountthat will hold the order details along with the total amount calculated for each order line. -
SELECT: Retrieves columns from the
OrderDetailstable and calculates the total amount for each row. -
((orderdetails.UnitPrice * orderdetails.Quantity) - orderdetails.Discount) AS TotalAmount: This expression calculates the total cost for each product by multiplying the unit price by the quantity and subtracting any discount applied.
SQL Query:
-- Step 1: Create a view for order details with total amount per row
CREATE VIEW orderdetailswithtotalamount AS
SELECT
orderdetails.OrderDetailID, -- Order Detail ID
orderdetails.OrderID, -- Order ID from OrderDetails table
orderdetails.ProductID, -- Product ID from OrderDetails table
orderdetails.Quantity, -- Quantity of products in the order
orderdetails.UnitPrice, -- Unit price of each product
orderdetails.Discount, -- Discount on the order
((orderdetails.UnitPrice * orderdetails.Quantity) - orderdetails.Discount) AS TotalAmount -- Calculating Total Amount (UnitPrice * Quantity - Discount)
FROM
orderdetails; -- From the OrderDetails table
-- Step 2: View the data from the orderdetailswithtotalamount view
SELECT * FROM orderdetailswithtotalamount;
Output:
