Question

我甚至不确定这是可能的，但我有一个订单表（在线商店）。在此表中，送货地址和帐单邮寄地址列是ID，与地址表对应。

对于例如

OrderID     ShippingAddressID   BillingAddressID
201800194   21183               21182

地址表然后列出地址信息。

AddressID   Address1            City        RegionCode
21182       123 Somewhere Dr    Hometown1   Florida
21183       456 Elsewhere Rd    Hometown2   Florida

我希望结果列表能够显示与此相似的内容：

OrderID     BillingAddress1     BillingCity BillingRegionCode   ShippingAddress1    ShippingCity    ShippingRegionCode
201800194   123 Somewhere Dr    Hometown1   Florida             456 Elsewhere Rd    Hometown2       Florida

这甚至可能吗？

谢谢..

Answer 1

两次加入地址表。以下数据示例。

CREATE TABLE #Orders (OrderID int, ShippingAddressId int, BillingAddressId int)
CREATE TABLE #Address (AddressID int, Address1 varchar(100), City varchar(100), RegionCode varchar(100))

INSERT INTO #Orders (OrderID, ShippingAddressId, BillingAddressId) VALUES
(201800194 , 21183, 21182)

INSERT INTO #Address (AddressID, Address1, City, RegionCode) VALUES
(21182, '123 Somewhere Dr', 'Hometown1', 'Florida'),
(21183, '456 Elsewhere Rd', 'Hometown2', 'Florida')

SELECT
    ORD.OrderID,
    BILL.Address1 AS 'BillingAddress1',
    BILL.City AS 'BillingCity',
    BILL.RegionCode AS 'BillingRegionCode',
    SHIP.Address1 AS 'ShippingAddress1',
    SHIP.City AS 'ShippingCity',
    SHIP.RegionCode AS 'ShippingRegionCode'
FROM 
    #Orders AS ORD
    LEFT OUTER JOIN #Address AS SHIP
        ON ORD.ShippingAddressId = SHIP.AddressID
    LEFT OUTER JOIN #Address AS BILL
        ON ORD.BillingAddressId = BILL.AddressID

DROP TABLE #Orders
DROP TABLE #Address

Answer 2

让我们假设你的表是订单，地址。

Select A.OrderID, B1.Address1 As 'BillingAddress1', B1.City As 'BillingCity', B1.RegionCode As 'BillingRegionCode', B2.Address1 As 'ShippingAddress1', B2.City As 'ShippingCity', B2.RegionCode As 'ShippingRegionCode'
FROM Order AS A
Left Join Address  AS B1 On A.BillingAddressID = B1.AddressID
Left Join Address  As B2 On A.ShippingAddressID = B2.AddressID

希望这有助于

Answer 3

是的，你可以使用像这样的连接来实现它 -

SELECT OrderId, Billing.Address1 As BillingAddress1, Shipping.Address1 AS 
ShippingAddress1, ... other column
FROM dbo.Order
LEFT JOIN dbo.Address AS Billing ON Order.BillingAddressID = Billing.AddressID
LEFT JOIN dbo.Address AS Shipping ON Order.ShippingAddressID = Shipping.AddressID

根据列的值从另一个表中选择多个列

3 个答案: