您可以使用 SQL Server 的PIVOT http://msdn.microsoft.com/en-us/library/ms177410.aspx操作员
SELECT *
FROM (
SELECT P.ProductName
, C.CustName
, T.Amount
FROM Transactions AS T
INNER JOIN Product AS P ON T.ProductID = P.ProductID
INNER JOIN Customer AS C ON T.CustomerID = C.CustomerID
WHERE T.TranDate BETWEEN '2011-01-01' AND '2011-03-31'
) s
PIVOT (SUM(Amount) FOR ProductName IN ([Car], [Cycle], [Scooter])) pvt
测试数据
;WITH q AS (
SELECT [Product] = 'Car', [Customer] = 'Armstrong', [Amount] = 80115.50
UNION ALL SELECT 'Car', 'Michelle', 36571.85
UNION ALL SELECT 'Car', 'Schmidt', 45000.65
UNION ALL SELECT 'Cycle', 'Michelle', 15000.00
UNION ALL SELECT 'Cycle', 'Ronald', 25000.00
UNION ALL SELECT 'Scooter', 'Peterson', 82658.23
UNION ALL SELECT 'Scooter', 'Ronald', 98547.52
UNION ALL SELECT 'Scooter', 'Schmidt', 54000.25
)
SELECT Customer
, Car = ISNULL(Car, 0)
, Cycle = ISNULL(Cycle, 0)
, Scooter = ISNULL(Scooter, 0)
, Total = ISNULL(Car, 0) + ISNULL(Cycle, 0) + ISNULL(Scooter, 0)
FROM (
SELECT *
FROM q
) s
PIVOT (SUM(Amount) FOR Product IN ([Car], [Cycle], [Scooter])) pvt
Output
Customer Car Cycle Scooter Total
Armstrong 80115.50 0.00 0.00 80115.50
Michelle 36571.85 15000.00 0.00 51571.85
Peterson 0.00 0.00 82658.23 82658.23
Ronald 0.00 25000.00 98547.52 123547.52
Schmidt 45000.65 0.00 54000.25 99000.90