如何获得MS-Access以停止忽略总和计数查询中的记录

Question

要设置此问题，我必须在Access表中跟踪以下4条记录，这些记录用于跟踪应付款和注册。 该表名称为“交易”

ID | Transaction Date | Transaction Name | Credit Account | Debit Account | Amount
1 | 9/1/2011 | 2011 Yearly Registration | Accounts Receivable | Income : Registration | 27
2 | 2/18/2012 | Registration Payment | Cash | Accounts Receivable | 27
3 | 11/1/2012 | 2012 Yearly Registration | Accounts Receivable | Income : Registration | 27
4 | 12/7/2012 | Registration Payment | Cash | Accounts Receivable | 27

（“交易名称”字段实际上是一个ID字段，该FK指向另一个存储实际名称的表。稍后将显示该字段）。

然后，我创建了一个查询，将那些记录放入一种格式，在其中我可以对数量进行求和以找出余额：

SELECT [Transaction Date], [Transaction Name], (select [Account Name] from Account_lookup where ID = Transactions.[Credit Account]) as Account , sum(Amount) as [Totals]
FROM Transactions
GROUP BY [Transaction Date],[Transaction Name],[Credit Account]
UNION SELECT  [Transaction Date],[Transaction Name],(select [Account Name] from Account_lookup where ID = Transactions.[Debit Account]) as Account, sum(Amount)*-1 as [Totals]
FROM Transactions
GROUP BY [Transaction Date],[Transaction Name],[Debit Account]
ORDER BY 3, 1 DESC;

结果如下（收入和现金记录已删除，因为它们对于此问题并不重要）。 该查询称为“贷方和借方帐户总计”。

Transaction Date | Transaction Name | Account | Totals
9/1/2011 | 2011 Yearly Registration | Accounts Receivable | 27
2/18/2012 | Registration Payment | Accounts Receivable | (27)
11/1/2012 | 2012 Yearly Registration | Accounts Receivable | 27
12/7/2012 | Registration Payment | Accounts Receivable | (27)

因此，对Totals列求和的查询应返回0。但不是。

当我在上面的查询之上运行以下查询（我的查询正在查询另一个查询）时，

SELECT [Credit and Debit Account Totals].Account, Sum([Credit and Debit Account Totals].Totals) AS SumOfTotals
FROM [Credit and Debit Account Totals]
GROUP BY [Credit and Debit Account Totals].Account
HAVING ((([Credit and Debit Account Totals].Account)="Accounts Receivable"));

我得到以下内容：

Account | SumOfTotal
Accounts Receivable | 27

如果将总和更改为计数，则得到3。我期望总和为0，计数为4。

如何获得Access使用我所有4条记录的权限？ 我猜测Access会以某种方式忽略第二笔付款，因为“交易名称”是相同的，但是“名称”不是总和查询的一部分，并且“日期”字段使第一行查询中的每一行都与众不同。

我试过将所有都放在SELECT之后，但这没用。 我是否必须首先将所有数据复制到另一个表中？现在，通过在联合查询之上运行总和查询，Access会变得混乱吗？ 当我在第二个查询中添加日期，从而使每一行都不同时，我看到了所有4条记录。

Answer 1

退后一步。 更改您的第一个查询：

SELECT [Transaction Date], [Transaction Name], 
       [Credit Account] As Account,Amount 
FROM Transactions
UNION 
SELECT [Transaction Date],[Transaction Name], 
       [Debit Account] As Account,Amount*-1 
FROM Transactions

然后

SELECT [Credit and Debit Account Totals].Account, 
       Sum([Credit and Debit Account Totals].amount) AS SumOfamount
FROM [Credit and Debit Account Totals]
GROUP BY [Credit and Debit Account Totals].Account
HAVING [Credit and Debit Account Totals].Account="Accounts Receivable"

我认为，分组的层次太复杂了。

编辑重新评论

SELECT [Transaction Date], [Transaction Name], 
       Account, Sum(Amount ) AS Total
FROM (SELECT [Transaction Date], [Transaction Name],
      [Credit Account] As Account,Amount 
FROM Transactions
UNION 
SELECT [Transaction Date],[Transaction Name], 
       [Debit Account] As Account,Amount*-1 
FROM Transactions)  AS q
GROUP BY [Transaction Date], [Transaction Name], Account
ORDER BY 3, 1 DESC;