SQL Group By 和 Order by with sum

Question

有以下疑问

--10/24/24 - UNIT PRICE AND QTY SHIPPED
SELECT DBO.SHIPPER.PACKLIST_ID, dbo.shipper.SHIPPED_DATE, DBO.SHIPPER.CUST_ORDER_ID, dbo.SHIPPER_LINE.SHIPPED_QTY, dbo.SHIPPER_LINE.UNIT_PRICE, 
dbo.SHIPPER_LINE.SHIPPED_QTY * dbo.SHIPPER_LINE.UNIT_PRICE AS TOTAL
FROM  DBO.SHIPPER
INNER JOIN dbo.SHIPPER_LINE on dbo.SHIPPER.PACKLIST_ID = dbo.SHIPPER_LINE.PACKLIST_ID
WHERE dbo.shipper.SHIPPED_DATE BETWEEN dateadd(m, datediff(m, 0, GetDate()), 0) AND dateadd(m, datediff(m, -1, GetDate()), 0)
ORDER BY dbo.shipper.SHIPPED_DATE 

返回以下结果（为了讨论而缩写）

PACKLIST_ID DATE        CUST_ORDER_ID TOTAL
57976       2024-10-01  C24807        3710.0000000000
57979       2024-10-01  C24860        130.0000000000
58104       2024-10-01  C24941        375.0000000000
58104       2024-10-01  C24941        1925.0000000000
58104       2024-10-01  C24941        0.0000000000
58104       2024-10-01  C24941        0.0000000000
58104       2024-10-01  C24941        0.0000000000
58104       2024-10-01  C24941        0.0000000000
58153       2024-10-04  C24923        780.0000000000
58152       2024-10-07  C24923        -6240.0000000000

我想要的是

PACKLIST_ID DATE        CUST_ORDER_ID  TOTAL
57976       2024-10-01  C24807         3710.0000000000
57979       2024-10-01  C24860         130.0000000000
58104       2024-10-01  C24941         2300.0000000000
58153       2024-10-04  C24923        780.0000000000
58152       2024-10-07  C24923        -6240.0000000000

如何获得每个

CUST_ORDER_ID

的总和？有时

CUST_ORDER_ID

相同，但

PACKLIST_ID

不同，需要将它们分开。

Answer 1

在这里您可以使用

Group By

功能。

举个简单的例子：

Orders
  id   item    cust_id    amount
  1   Keyboard     4        450
  2   Mouse        4        300
  3   Monitor      3      12000
  4   Keyboard     1        400
  5   Mousepad     2        250
  6   Mouse        4        120
  7   Mousepad     4        260
  8   Keyboard     1        410
  9   Monitor      4      11260

在这里我必须找到同一客户的商品总和。

所以这将是上述问题的解决方案：

SELECT order_id, item, sum(amount) as Total, cust_id
FROM Orders
group by
    item, 
    cust_id;

在您的情况下，您可以修改您的查询如下：

SELECT 
  DBO.SHIPPER.PACKLIST_ID, 
  dbo.shipper.SHIPPED_DATE, 
  DBO.SHIPPER.CUST_ORDER_ID, 
  dbo.SHIPPER_LINE.SHIPPED_QTY, 
  dbo.SHIPPER_LINE.UNIT_PRICE, 
  SUM(dbo.SHIPPER_LINE.SHIPPED_QTY * dbo.SHIPPER_LINE.UNIT_PRICE) AS TOTAL
FROM  
  DBO.SHIPPER
INNER JOIN 
  dbo.SHIPPER_LINE on dbo.SHIPPER.PACKLIST_ID = dbo.SHIPPER_LINE.PACKLIST_ID
WHERE 
  dbo.shipper.SHIPPED_DATE BETWEEN dateadd(m, datediff(m, 0, GetDate()), 0) 
  AND 
  dateadd(m, datediff(m, -1, GetDate()), 0)
GROUP BY 
    DBO.SHIPPER.PACKLIST_ID, 
    DBO.SHIPPER.CUST_ORDER_ID
ORDER BY 
  dbo.shipper.SHIPPED_DATE;

希望这对您有帮助。