C# 如何在一个查询中合并多个Select查询

我有这4个查询，我想从如下表中选择数据

---------------------------------------------------------------
Month    Total Fee        Fee Deposit        Fee Due    Fine
---------------------------------------------------------------
October   200,000           100,000          100,000    5,00

我的问题是：
一,

二,

三,

四,

您可以这样做：

SELECT  
  v.DueDate AS'Date',
  Sum(CASE WHEN v.FeeSubmission = 'Paid'   THEN v.Fee ELSE 0 END) AS 'FeeDeposit', 
  Sum(CASE WHEN v.FeeSubmission = 'UnPaid' THEN v.Fee ELSE 0 END) AS 'FeeDue',
  Sum(r.Fine)AS'Fine',
  Sum(r.Fee) AS 'TotalFee'
FROM  RevenueTB AS r
INNER JOIN VoucherTB AS v ON v.VoucherNo = r.VoucherNo
GROUP BY v.DueDate

您可以这样做：

SELECT  
  v.DueDate AS'Date',
  Sum(CASE WHEN v.FeeSubmission = 'Paid'   THEN v.Fee ELSE 0 END) AS 'FeeDeposit', 
  Sum(CASE WHEN v.FeeSubmission = 'UnPaid' THEN v.Fee ELSE 0 END) AS 'FeeDue',
  Sum(r.Fine)AS'Fine',
  Sum(r.Fee) AS 'TotalFee'
FROM  RevenueTB AS r
INNER JOIN VoucherTB AS v ON v.VoucherNo = r.VoucherNo
GROUP BY v.DueDate

---

请描述更多，不清楚，你的确切问题是什么。请描述更多，不清楚，您的确切问题是什么。感谢查询正在工作，当我使用它时没有精细或内部联接，但当我使用相同的查询时没有给出正确的结果谢谢查询正在工作，当我使用它时没有精细或内部联接，但当我使用相同的查询时没有给出正确的结果，您的查询已解决。别忘了接受这个答案。很高兴你的问题得到解决。别忘了接受这个答案。

SELECT Sum(Fee)AS'FeeDue', DueDate AS'Date' 
FROM VoucherTB 
WHERE FeeSubmission='UnPaid' 
GROUP BY DueDate

SELECT Sum(RevenueTB.Fine)AS'Fine', VoucherTB.DueDate AS'Date' 
FROM RevenueTB 
INNER JOIN VoucherTB 
ON venueTB.VoucherNo=VoucherTB.VoucherNo 
GROUP BY VoucherTB.DueDate

SELECT  
  v.DueDate AS'Date',
  Sum(CASE WHEN v.FeeSubmission = 'Paid'   THEN v.Fee ELSE 0 END) AS 'FeeDeposit', 
  Sum(CASE WHEN v.FeeSubmission = 'UnPaid' THEN v.Fee ELSE 0 END) AS 'FeeDue',
  Sum(r.Fine)AS'Fine',
  Sum(r.Fee) AS 'TotalFee'
FROM  RevenueTB AS r
INNER JOIN VoucherTB AS v ON v.VoucherNo = r.VoucherNo
GROUP BY v.DueDate

Select * from
(
SELECT Sum(Fee)AS'TotalFee', DueDate AS'Date' 
FROM VoucherTB 
GROUP BY DueDate
) A
left join
(
SELECT Sum(VoucherTB.Fee)AS'FeeDeposit', DueDate AS'Date' 
FROM  VoucherTB 
WHERE FeeSubmission='Paid' 
GROUP BY VoucherTB.DueDate
)B on B.Date = A.Date 
left join
(
SELECT Sum(Fee)AS'FeeDue', DueDate AS'Date' 
FROM VoucherTB 
WHERE FeeSubmission='UnPaid' 
GROUP BY DueDate
) C on C.Date = A.Date 
left join
(
SELECT Sum(RevenueTB.Fine)AS'Fine', VoucherTB.DueDate AS'Date' 
FROM RevenueTB 
INNER JOIN VoucherTB 
ON venueTB.VoucherNo=VoucherTB.VoucherNo 
GROUP BY VoucherTB.DueDate
) D on D.Date = A.Date