Question

我使用以下查询来获取OrderID：

SELECT OrderItem.ID
     , ProductID
     , OrderID
     , Quantity
     , P.Title
     , P.CurrentPrice
     , P.ID
     , (P.CurrentPrice* OrderItem.Quantity) AS Total
FROM OrderItem
INNER JOIN Product AS P
   ON OrderItem.ProductID = P.ID

如何获取每个OrderID的总金额（使用相同的OrderID添加所有总计）？

Answer 1

您可以使用

选择和分组的选择表单

select OrderID, sum(Total) 
from (
SELECT 
    OrderItem.ID
    , ProductID
    , OrderID
    , Quantity
    , P.Title
    ,P.CurrentPrice
    , P.ID
    , (P.CurrentPrice* OrderItem.Quantity) AS Total
FROM OrderItem 
INNER JOIN Product AS P ON OrderItem.ProductID = P.ID
) t 
group by OrderId

Answer 2

我只是SQL新手，但我认为这是解决方案。

SELECT OrderItem.ID, ProductID, OrderID, Sum(Quantity) AS Sum of Quantity, P.Title,P.CurrentPrice, P.ID, (P.CurrentPrice* OrderItem.Quantity) AS Total
FROM OrderItem INNER JOIN Product AS P ON OrderItem.ProductID = P.ID GROUP BY OrderID

希望这有助于。

如何获取MS Access SQL中的总金额？

2 个答案: