关闭结果在SQL查询中的开盘和结账余额中不正确？

Question

我发现每日帐户的开盘和结帐余额，但当同一日期的记录超过一个记录时，它给了我错误的结果。这里是我的查询的查询

SELECT cast(TransDate as date) 
, SUM ([Total deposits]) As 'Total deposits' 
, SUM ([Total withdrawals]) As 'Total withdrawals' 
, SUM (ClosingBalance) AS ClosingBalance 
FROM (
SELECT TransDate 
, ISNULL (SUM (Ledger.Cr), 0) AS 'Total deposits' 
, ISNULL (SUM (Ledger.Dr), 0) AS 'Total withdrawals' 
, 0 AS ClosingBalance 
FROM Ledger where Ledger.TransDate between '2014-02-14' and '2014-02-20' 
GROUP BY Ledger.TransDate 
UNION ALL 

SELECT TransDate 
, 0 AS 'Total deposits' 
, 0 AS 'Total withdrawals' 
, ISNULL ((SELECT SUM (MT2.Cr) FROM Ledger MT2 WHERE MT2.TransDate <= MT.TransDate), 0) 
- ISNULL ((SELECT SUM (MT2.Dr) FROM Ledger MT2 WHERE cast(MT2.TransDate as date) <= MT.TransDate), 0) 

FROM Ledger MT where TransDate between '2014-02-14' and '2014-02-20' 
GROUP BY Transdate 
) AS X 
GROUP BY cast(TRANSDATE as date) 

结果

这里是我的数据库文件脚本

USE [MDS] 
GO 
/****** Object: Table [dbo].[Ledger] Script Date: 03/26/2014 23:42:04 ******/ 
SET ANSI_NULLS ON 
GO 
SET QUOTED_IDENTIFIER ON 
GO 
SET ANSI_PADDING ON 
GO 
CREATE TABLE [dbo].[Ledger](
    [id] [int] IDENTITY(1,1) NOT NULL, 
    [PrisonerID] [int] NULL, 
    [TransDate] [datetime] NULL, 
    [Dr] [money] NULL, 
    [Cr] [money] NULL, 
    [Partical] [varchar](50) NULL, 
CONSTRAINT [PK_Ledger] PRIMARY KEY CLUSTERED 
(
    [id] ASC 
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] 
) ON [PRIMARY] 
GO 
SET ANSI_PADDING OFF 
GO 
SET IDENTITY_INSERT [dbo].[Ledger] ON 
INSERT [dbo].[Ledger] ([id], [PrisonerID], [TransDate], [Dr], [Cr], [Partical]) VALUES (1, 5, CAST(0x0000A2D200D9255B AS DateTime), 0.0000, 500.0000, N'payment recived') 
INSERT [dbo].[Ledger] ([id], [PrisonerID], [TransDate], [Dr], [Cr], [Partical]) VALUES (2, 5, CAST(0x0000A2D300D9255B AS DateTime), 0.0000, 200.0000, N'withdraw') 
INSERT [dbo].[Ledger] ([id], [PrisonerID], [TransDate], [Dr], [Cr], [Partical]) VALUES (3, 5, CAST(0x0000A2D400DBE47B AS DateTime), 20.0000, 0.0000, N'withdraw') 
INSERT [dbo].[Ledger] ([id], [PrisonerID], [TransDate], [Dr], [Cr], [Partical]) VALUES (4, 5, CAST(0x0000A2D200000000 AS DateTime), 10.0000, 0.0000, N'withdraw') 
INSERT [dbo].[Ledger] ([id], [PrisonerID], [TransDate], [Dr], [Cr], [Partical]) VALUES (5, 5, CAST(0x0000A2D700D9255B AS DateTime), 0.0000, 200.0000, N'payment revived') 
INSERT [dbo].[Ledger] ([id], [PrisonerID], [TransDate], [Dr], [Cr], [Partical]) VALUES (6, 5, CAST(0x0000A2D20083D600 AS DateTime), 10.0000, 0.0000, N'withdraw') 
SET IDENTITY_INSERT [dbo].[Ledger] OFF 
/****** Object: Default [DF_Ledger_Dr] Script Date: 03/26/2014 23:42:04 ******/ 
ALTER TABLE [dbo].[Ledger] ADD CONSTRAINT [DF_Ledger_Dr] DEFAULT ((0.0000)) FOR [Dr] 
GO 
/****** Object: Default [DF_Ledger_Cr] Script Date: 03/26/2014 23:42:04 ******/ 
ALTER TABLE [dbo].[Ledger] ADD CONSTRAINT [DF_Ledger_Cr] DEFAULT ((0.0000)) FOR [Cr] 
GO 

Answer 1

你有一对夫妇的问题，密谋反对你。首先，您的日期为summing和grouping，但您要保留完整的时间戳。然后，您的UNION ALL正在导致这些在您的计算中重复。如果您在同一日期还有其他存款，您也会看到这些数字也在膨胀。

您也可以将您的总和，查询到一个SELECT一些相关子查询，像这样：

SELECT dateadd(dd, datediff(dd, 0, a.TransDate), 0) 
, ISNULL (SUM (a.Cr), 0) AS 'Total deposits' 
, ISNULL (SUM (a.Dr), 0) AS 'Total withdrawals' 
, ISNULL((SELECT SUM(Cr) from Ledger where dateadd(dd, datediff(dd, 0, TransDate), 0) <= dateadd(dd, datediff(dd, 0, a.TransDate), 0)), 0) 
- ISNULL((SELECT SUM(Dr) from Ledger where dateadd(dd, datediff(dd, 0, TransDate), 0) <= dateadd(dd, datediff(dd, 0, a.TransDate), 0)), 0) as 'Closing Balance' 
FROM Ledger a 
where a.TransDate between '2014-02-14' and '2014-02-20' 
GROUP BY dateadd(dd, datediff(dd, 0, a.TransDate), 0) 

这里有一个SQL Fiddle证明。

此外，您可能还想对PrisonerID进行分组，或者每个囚犯都会得到相同的结果。