Query for 3 tables.

Question

Hi,
I need to write a SELECT statement that returns one row for each customer that has orders with the following columns:
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Email addresses from Customers Table
Sum of the Item Price in the OrdersItems table multiplied by the quantity in the
OrderItems table
Sum of the discount amount column in the OrderItems table multiplied by the quantity in the OrderItems Table.
Sort the results set in the descending sequence by the item price total for each customer.
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Customers table has no connection with Orderitems table, so it has to go through ORDERS table.  I have written the following query. Can someone check and give me a feed back? It is not giving me the correct output. This should be the output:
Email address                                        
ItemPriceTotal                                DiscountAmountTotal
[email protected]                   4131.00                                             
1830.30
etc, etc........
My code is not adding the above columns correctly. I have tried SUM for Total columns but gives me errors:
SELECT EmailAddress, ItemPrice * Quantity AS ItemPriceTotal, DiscountAmount * Quantity AS DiscountAmountTotal
FROM
Customers
 JOIN ORDERS
ON CUSTOMERS.CustomerID = Orders.CustomerID  ----Joins Orders with Customers
JOIN OrderItems
ON Orders.OrderID = OrderItems.OrderID; ------ Joins Orders with OrderItems
----ORDER BY EmailAddress,ItemPriceTotal;  ( tried Order by, but output is not correct)

Answer 1

Thank you for your help. I really appreciate it. My output should look like this, but my query is not adding the ItemPriceTotal and DiscountAmountTotal:
Results:
EmailAddress
ItemPriceTotal
DiscountAmountTotal
[email protected]
4131.00
1830.39
[email protected]
2398.00
719.40
[email protected]
2198.98
659.70
[email protected]
998.00
209.70
[email protected]
799.99
120.00
[email protected]
489.99
186.20
[email protected]
299.00
0.00