SSRS 查询获取标量变量错误，而不是在 Visual Studio 中使用参数答案

【问题标题】：SSRS Query gets scalar variable error instead of using parameter in Visual StudioSSRS 查询获取标量变量错误，而不是在 Visual Studio 中使用参数
【发布时间】：2020-03-07 02:48:49
【问题描述】：

我在 SSRS 没有使用报告中已声明的参数时遇到问题。在报告中，我已经有两个查询，它们都使用@Period 来确定用户请求的月份。然而，在第三份报告中，它不断提出标量变量错误，并希望我声明 @Period，当然，除非我指定 int 值，否则会显示一个完全不正确的数字，因为它汇总了所有内容而不是设定的期间。

我已经检查了代码，甚至从工作代码中复制粘贴 @Period 以查看是否有隐藏空间或阻止它使用正确参数但它仍然看不到它的东西。下面是 Visual Studio 中报告数据窗口的屏幕截图和我正在使用的代码。我只是不明白为什么它不能使用@Period。

Declare @Year As int
--Declare @Period As int  = 9

--Sets up the year for this financial year
If @Period Between 5 and 12
Begin
Set @Year = Year(Getdate()) + 1
End
Else 
Set @Year = YEAR(Getdate())
--Sets the Declared Period to the correct number for Clients
if @Period = 5 
Begin
Set @Period = 1
End
ELSE if @Period = 6
Begin
Set @Period = 2
End
Else if @Period = 7
Begin
Set @Period = 3
End
Else if @Period = 8 
Begin
Set @Period = 4
End
Else if @Period = 9
Begin
Set @Period = 5
End
Else if @Period = 10
Begin
Set @Period = 6
End
Else if @Period = 11
Begin
Set @Period = 7
End
Else if @Period = 12
Begin
Set @Period = 8
End
Else if @Period = 1
Begin
Set @Period = 9
End
Else if @Period = 2
Begin
Set @Period = 10
End
Else if @Period = 3
Begin
Set @Period = 11
End
Else
Set @Period = 12

--This Sorts all the clients into their sectors
SELECT A.GROUP_NAME,B.CLIENT_DIWOR 
INTO #TMPCLIENT
FROM CLIENT_GROUP A
JOIN CLIENT_GRP_MEMBER B on A.DIWOR = B.CLIENT_GRP_DIWOR
WHERE GROUP_TYPE = 'THEME'
GROUP BY A.GROUP_NAME,B.CLIENT_DIWOR 

--This sets the figures according to Current year and period range
SELECT A.MATTER_ALPHA_NAME,B.FEES_PRD As Fees,A.CLIENT_DIWOR,D.GROUP_NAME
INTO #Fees
FROM MATTER A 
JOIN ON_MAT_FE_PERF B on A.MATTER_DIWOR = B.MATTER_DIWOR
JOIN PM_YEAR C on B.FINYEARDIWOR = C.DIWOR
LEFT JOIN #TMPCLIENT D on D.CLIENT_DIWOR = A.CLIENT_DIWOR
WHERE  C.YEARDESC = @Year and B.PERIOD between 1 and @Period  and B.FEES_PRD <> 0 and D.GROUP_NAME 
is 
   not NULL
   order by MATTER_ALPHA_NAME

--This sets Previous year and period
Set @Year = SUM(@Year-1)

SELECT A.MATTER_ALPHA_NAME,B.FEES_PRD As Fees,A.CLIENT_DIWOR,D.GROUP_NAME
INTO #PFees
FROM MATTER A 
JOIN ON_MAT_FE_PERF B on A.MATTER_DIWOR = B.MATTER_DIWOR
JOIN PM_YEAR C on B.FINYEARDIWOR = C.DIWOR
LEFT JOIN #TMPCLIENT D on D.CLIENT_DIWOR = A.CLIENT_DIWOR
WHERE  C.YEARDESC = @Year and B.PERIOD between 1 and @Period  and B.FEES_PRD <> 0 and D.GROUP_NAME 
is not NULL
order by MATTER_ALPHA_NAME

Select TOP 20
MATTER_ALPHA_NAME,SUM(Fees) As Fees,GROUP_NAME
Into #Charities
FROM #Fees
WHERE GROUP_NAME = 'Charities (Sector)' 
GROUP By MATTER_ALPHA_NAME,GROUP_NAME
ORDER BY Fees Desc

Select TOP 20
MATTER_ALPHA_NAME,SUM(Fees) As Fees,GROUP_NAME
Into #PCharities
FROM #PFees
WHERE GROUP_NAME = 'Charities (Sector)'
GROUP By MATTER_ALPHA_NAME,GROUP_NAME
ORDER BY Fees Desc

SELECT ROUND(SUM(Fees),-3) As Fees
Into #TmpCharC
FROM #Charities 

SELECT ROUND(SUM(Fees),-3) As Fees
Into #TmpCharP
FROM #PCharities

Create Table #Main (Charity int,PCharity int)

insert into #Main (Charity,PCharity)
Select A.Fees,B.Fees 
from #TmpCharC A
CROSS JOIN #TmpCharP B

Select * From #Main

【问题讨论】：

旁注：使用Modular arithmetic 设置周期：set @Period = (@Period + 8) % 12 将使您在设置新的@Period 值时免于使用if...else if...。

标签： tsql reporting-services ssrs-2008-r2

【解决方案1】：

所以经过一番挖掘后，我发现了问题。

在数据集属性和参数内部，由于某种随机原因，未包含根据图像的参数名称。添加这个解决了这个问题。

感谢 Zoher Peled 提供关于模运算的提示

【讨论】：