sqltest.sql

WITH ProductDiscounts (ProductName, Discount)
AS
(
    SELECT p.Name, AVG(so.DiscountPct) as Discount FROM Production.Product p
    JOIN Sales.SpecialOfferProduct sop ON p.ProductID = sop.ProductID
    JOIN Sales.SpecialOffer so ON so.SpecialOfferID = sop.SpecialOfferID
    WHERE so.DiscountPct > 0.0
    GROUP BY p.Name
)
SELECT ProductName, (Discount*100) as disc
FROM ProductDiscounts
WHERE (Discount*100) > 15
ORDER BY (Discount*100) DESC