带乘法变量的表达式

如何解决带乘法变量的表达式

我正在制作一份基于借方和贷方报告的财务报告。如果满足某些条件，我想编写一个表达式，该表达式将取数量并将其乘以 -1。应该是这样的：

IF AccountClass = Revenue,Sum Amount *-1,IF AccountClass = Expenditure,Sum Amount *1

我使用的是 sql Server 2012 和 Microsoft sql Server 报表生成器。报告结果如下所示：

账户类	数量
收入	2,498.04
收入	-10,500.03
支出	500.00
支出	700.00

我希望它显示如下：

账户类	数量
收入	-2,498.04
收入	10,500.03
支出	500.00
支出	700.00

想法？

在数据集查询中，我添加了一个 CASE THEN WHEN 表达式，将 AccountClass Revenue 设置为 Category 1，AccountClass Expenditure 设置为 Category 2。然后我创建了这个表达式来计算总和本身：

=Sum(VAL(IIF(Fields!Category.Value = "Category 1",Fields!Amount.Value,0)*-1))

但我只能让它适用于第 1 类或第 2 类，我不知道如何让它同时适用于两者。类别 2 将类似，但 *1。

这是完整的查询：

SELECT
Custom1.Account,Custom1.AccountClass,Custom1.Description,Custom1.[Year],@Quarter as [Quarter],Custom1.Budget,CASE WHEN Custom1.AccountClass = 'Revenue' THEN 'Category 1'
WHEN Custom1.AccountClass = 'Expenditure' THEN 'Category 2'
ELSE 'Category 3'
END AS 'Category',SUM(Custom1.Amount) as Amount,(SELECT ISNULL(SUM(t.[Amount for Balance]),0) FROM [Transactions] t WHERE t.[Account Number] = Custom1.Account AND t.[Fiscal Year] = @Year and t.[Period Number] <= @QuarterEnd) as YearToDate,SUM(Custom2.Amount) as AmountLastYear,0) FROM [Transactions] t WHERE t.[Account Number] = Custom1.Account AND t.[Fiscal Year] = CONVERT(INTEGER,DATEPART(year,@Year)) - 1 and t.[Period Number] <= @QuarterEnd) as YearToDateLastYear
FROM [Account Details by Period] AS Custom1
LEFT JOIN [Account Details by Period] AS Custom2 ON Custom1.AccountID = Custom2.AccountID AND DATEPART(year,Custom2.FiscalYearEnd) = CONVERT(INTEGER,Custom1.FiscalYearEnd)) - 1  AND Custom1.Period = Custom2.Period
WHERE DATEPART(year,Custom1.FiscalYearEnd) = @Year 
AND Custom1.AccountClass IN (N'Revenue',N'Expenditure')
AND @Quarter = CASE WHEN Custom1.Period BETWEEN 1 AND 3 THEN 'Q1'
WHEN Custom1.Period BETWEEN 4 AND 6 THEN 'Q2'
WHEN Custom1.Period BETWEEN 7 AND 9 THEN 'Q3'
WHEN Custom1.Period BETWEEN 10 AND 12 THEN 'Q4'
END
AND @Quarter = CASE WHEN Custom2.Period BETWEEN 1 AND 3 THEN 'Q1'
WHEN Custom2.Period BETWEEN 4 AND 6 THEN 'Q2'
WHEN Custom2.Period BETWEEN 7 AND 9 THEN 'Q3'
WHEN Custom2.Period BETWEEN 10 AND 12 THEN 'Q4'
END
GROUP BY Custom1.Account,Custom1.Budget
ORDER BY Custom1.Account

解决方法

使用 case ，您需要提供示例数据但

如果 AccountClass 条件适用于每个金额：

select sum((case when AccountClass = 'Revenue' then -1 else 1 end) * amount)
from table 
...

如果 AccountClass 条件适用于整个 sum() 值，则

select sum(amount) * (case when AccountClass = 'Revenue' then -1 else 1 end)
from table 
...