2

我有 5 个查询要一起加入。基本上，他们所做的是浏览数据库并选择租户支付了多少，以及租户欠了多少，这取决于他或她多久前被收费。

我有四个类别
Charge < 30 天
Charge < 60 AND >= 30 天
Charge < 90 AND >= 60 天
Charge > 90 天

我知道如何分别获得所有这些值，但我怎样才能将它们放在一起，再加上租户支付的金额？

以下是我的疑问：
租户已支付的金额

SELECT TransactionCode, TenantID, SUM(Amount) AS Paid FROM tblTransaction
WHERE Amount > 0
GROUP BY TransactionCode, TenantID

收费不到 30 天

SELECT TransactionCode, TenantID, SUM(Amount) AS ChargedCurrent FROM tblTransaction
WHERE Amount < 0 AND TransactionDate > DATEADD("dd", -30, GETDATE())
GROUP BY TransactionCode, TenantID

收费不到 60 天，但超过 29 天

SELECT TransactionCode, TenantID, SUM(Amount) AS ChargedOver30 FROM tblTransaction
WHERE Amount < 0 AND TransactionDate > DATEADD("dd", -60, GETDATE()) AND TransactionDate <= DATEADD("dd", -30, GETDATE())
GROUP BY TransactionCode, TenantID

收费不到 90 天，但超过 59 天

SELECT TransactionCode, TenantID, SUM(Amount) AS ChargedOver60 FROM tblTransaction
WHERE Amount < 0 AND TransactionDate > DATEADD("dd", -90, GETDATE()) AND TransactionDate <= DATEADD("dd", -60, GETDATE())
GROUP BY TransactionCode, TenantID

费用超过 89 天

SELECT TransactionCode, TenantID, SUM(Amount) AS ChargedOver90 FROM tblTransaction
WHERE Amount < 0 AND TransactionDate <= DATEADD("dd", -90, GETDATE())
GROUP BY TransactionCode, TenantID

如何通过一个查询获得所有这些？

4

5 回答 5

7

可以这样做：

SELECT TransactionCode, TenantID, 
SUM(CASE WHEN Amount > 0 then Amount ELSE 0 END) AS Paid,
SUM(CASE WHEN Amount < 0 AND TransactionDate > DATEADD("dd", -30, GETDATE()) THEN Amount ELSE 0 END) AS ChargedCurrent,  
SUM(CASE WHEN Amount < 0 AND TransactionDate > DATEADD("dd", -60, GETDATE()) AND TransactionDate <= DATEADD("dd", -30, GETDATE()) THEN Amount ELSE 0 END) AS ChargedOver30
SUM(CASE WHEN Amount < 0 AND TransactionDate > DATEADD("dd", -90, GETDATE()) AND TransactionDate <= DATEADD("dd", -60, GETDATE()) then Amount Else 0 END) AS ChargedOver60,
SUM(CASE WHEN Amount < 0 AND TransactionDate <= DATEADD("dd", -90, GETDATE()) THEN Amount ELSE 0 END) AS ChargedOver90 
FROM tblTransaction
GROUP BY TransactionCode, TenantID
于 2009-06-01T14:50:10.397 回答
1

使用 UNION 将结果集拼接在一起会起作用。您可能希望使用 PIVOT 功能将其转换为单独的列。对不起，我不能更具体，我没有我的笔记，我不知道这些东西的确切语法。

于 2009-06-01T14:49:51.990 回答
1

如果您可以在所有 5 个单独的查询中使查询的投影或形状相同，则可以使用联合不仅将查询组合成单个结果，还可以对结果进行排序。我已经修改了最后一列以保持一致并代表收费的状态，以便您从结果中过滤：

SELECT TransactionCode, TenantID, SUM(Amount) [Amount], 'Paid' [Status]
FROM tblTransactionWHERE Amount > 0
GROUP BY TransactionCode, TenantID

union

SELECT TransactionCode, TenantID, SUM(Amount) [Amount], 'Charged Current' [Status]
FROM tblTransactionWHERE Amount < 0 AND TransactionDate > DATEADD("dd", -30, GETDATE())
GROUP BY TransactionCode, TenantID

union

SELECT TransactionCode, TenantID, SUM(Amount) [Amount], 'ChargedOver30' [Status]
FROM tblTransactionWHERE Amount < 0 AND TransactionDate > DATEADD("dd", -60, GETDATE()) AND TransactionDate <= DATEADD("dd", -30, GETDATE())
GROUP BY TransactionCode, TenantID

union

SELECT TransactionCode, TenantID, SUM(Amount) [Amount], 'ChargedOver60' [Status]
FROM tblTransactionWHERE Amount < 0 AND TransactionDate > DATEADD("dd", -90, GETDATE()) AND TransactionDate <= DATEADD("dd", -60, GETDATE())
GROUP BY TransactionCode, TenantID

union

SELECT TransactionCode, TenantID, SUM(Amount) [Amount], 'ChargedOver90' [Status]
FROM tblTransactionWHERE Amount < 0 AND TransactionDate <= DATEADD("dd", -90, GETDATE())
GROUP BY TransactionCode, TenantID

order by 4 --Status
于 2009-06-01T14:54:02.793 回答
1

这个交叉表查询应该可以工作：

SELECT 
Case WHEN Amount > 0 Then Amount Else 0 End as [Total],
Case WHEN Amount < 0 AND TransactionDate > DATEADD("dd", -30, GETDATE())
    Then Amount Else 0 End as [Charge 0-29 Days],
Case WHEN Amount < 0 AND TransactionDate > DATEADD("dd", -60, GETDATE()) AND TransactionDate <= DATEADD("dd", -30, GETDATE()) 
    Then Amount Else 0 End as [Charge 30-59 Days],
Case WHEN Amount < 0 AND TransactionDate > DATEADD("dd", -90, GETDATE()) AND TransactionDate <= DATEADD("dd", -60, GETDATE()) 
    Then Amount Else 0 End as [Charge 60-89 Days],
Case WHEN Amount < 0 AND TransactionDate <= DATEADD("dd", -90, GETDATE())
     Then Amount Else 0 End as [Charge 90+ Days],

FROM tblTransaction GROUP BY TransactionCode、TenantID

于 2009-06-01T15:01:35.147 回答
0

为每个查询添加一个额外的列

SELECT TransactionCode、TenantID、SUM(Amount) AS ChargedCurrent、30 as [DaysLate] FROM tblTransaction...

然后将所有查询联合起来

于 2009-06-01T14:52:20.207 回答