需要 SQL 内子查询计算帮助答案

【问题标题】：SQL inner sub query calculation help needed需要 SQL 内子查询计算帮助
【发布时间】：2015-08-01 15:04:02
【问题描述】：

我想从 totalammount 计算余额运行时间 - AmmountReceived = Balance next row ..

Totalammont（实际上将是以前的运行时计算的余额应该在这里） - AmmountReceived = Balance 等等......

这是我的查询，它不会减少 totalAmmount

select ID,
       RecvDate,
       BillNo,
       ModeofPayment,
       (Select Item_name from Product where ID = CampusRecovery.ItemID) as Item,
       SUM(AmountReceived) as AmountReceived,
       (Select CampusName from Campus where CampusID = CampusRecovery.CampusID) as Campus,
       IsNull((select SUM(Inventory_Out.TotalAmount)
               from Inventory_Out
               where Inventory_Out.BillNo = CampusRecovery.BillNo),0) as TotalAmmount,
       IsNull((select SUM(Inventory_Out.TotalAmount)
               from Inventory_Out
               where Inventory_Out.BillNo = CampusRecovery.BillNo),0) - SUM(AmountReceived) as Balance
from CampusRecovery 
where RecvDate Between @startdt and @enddt
  and CampusID = 2
Group By CampusRecovery.CampusID,
         CampusRecovery.ItemID,
         CampusRecovery.RecvDate,
         CampusRecovery.BillNo,
         CampusRecovery.ModeofPayment,
         CampusRecovery.ID

【问题讨论】：

您能否在表定义中添加一些示例数据和预期输出？会让弄清楚这一点变得容易得多
包括样本数据和您的预期输出。根据您的描述，您需要窗口函数。
@JeremyC。请查看我更新的帖子，我插入了解释问题的图片
@VladimirOselsky 请查看我更新的帖子，我已插入解释问题的图片
所以最后一行的 Totalamount 应该是 240 和 balence 40？在这种情况下，您没有给我们正确的语句，因为我们需要您的插入语句

标签： join subquery correlated-subquery inner-query

【解决方案1】：

select cr.BillNum, cr.DelievryDate,cr.AmmountReceived,(select TotalAmmount from InventoryOut where InventoryOut.BillNum = cr.BillNum) as TotalBill,
(select TotalAmmount -
(select Sum(AmmountReceived) from CampusRecovery ch where ch.BillNum = io.BillNum )
 from InventoryOut io where io.BillNum = cr.BillNum )--- sum(cr.AmmountReceived)
as Balance
from CampusRecovery  cr where CampusID = 1
group by 
cr.BillNum,
cr.DelievryDate,
cr.BillNum,
cr.AmmountReceived

【讨论】：