如何在SQL的汇总函数中引用SSRS报告参数

debugcn 发表于 Dev

戴夫C

我有一个SSRS报告，该报告总结了指定日期范围内的数据集。

我想使用report参数为查询中的聚合函数提供日期范围。这有可能吗？

我有使用变量的聚合函数，但是我想更改此设置，以便用户可以在运行报表之前选择日期范围。

以下是原始的工作汇总函数（在整个查询的上下文中-我删除了查询的不相关部分以免造成混淆）。

请注意，@ MonthNum和@ReportYear变量用作COUNT（）函数的条件。我想更改这些变量以报告参数值，但是无法解决。

DECLARE @MonthNum int;
DECLARE @ReportYear int;

SET @MonthNum = CASE WHEN (MONTH(GETDATE())=1) THEN 12 ELSE MONTH(GETDATE()) - 1 END;
SET @ReportYear = CASE WHEN (MONTH(GETDATE())=1) THEN 
YEAR(GETDATE())-1 ELSE YEAR(GETDATE()) END;

SELECT
COUNT(CASE WHEN (MONTH(tblInvoices.fldDeliveredDate) = @MonthNum AND
(YEAR(tblInvoices.fldDeliveredDate)) = @ReportYear) THEN tblSessions.fldStudioNo END) 
AS MonthVolume

FROM tblInvoices INNER JOIN
tblSessions ON tblInvoices.fldSesID = tblSessions.fldSesID INNER JOIN
tblSessionCustom ON tblSessions.fldSesID = tblSessionCustom.fldSessionCustomID 
INNER JOIN
tblCompInfo ON tblSessions.fldStudioNo = tblCompInfo.fldStudioNo

GROUP BY tblSessions.fldStudioNo, tblCompInfo.fldCompName
HAVING (NOT (tblSessions.fldStudioNo LIKE '999'))

在此先感谢您提供的任何帮助或指导。非常感激。

戴夫

克里斯蒂安·巴伦

我相信您将需要以下类似的东西，您需要在SSRS中创建参数@StartDate和@EndDate，以便它们输入到查询中：

DECLARE @MonthNum int;
DECLARE @ReportYear int,
    @StartDate date,
    @EndDate date

SET @MonthNum = CASE WHEN (MONTH(GETDATE())=1) THEN 12 ELSE MONTH(GETDATE()) - 1 END;
SET @ReportYear = CASE WHEN (MONTH(GETDATE())=1) THEN 
YEAR(GETDATE())-1 ELSE YEAR(GETDATE()) END;

SELECT
COUNT(CASE WHEN (MONTH(tblInvoices.fldDeliveredDate) = @MonthNum AND
(YEAR(tblInvoices.fldDeliveredDate)) = @ReportYear) THEN tblSessions.fldStudioNo END) 
AS MonthVolume

FROM tblInvoices INNER JOIN
tblSessions ON tblInvoices.fldSesID = tblSessions.fldSesID INNER JOIN
tblSessionCustom ON tblSessions.fldSesID = tblSessionCustom.fldSessionCustomID 
INNER JOIN
tblCompInfo ON tblSessions.fldStudioNo = tblCompInfo.fldStudioNo
Where tblInvoices.fldDeliveredDate between @StartDate and @EndDate

GROUP BY tblSessions.fldStudioNo, tblCompInfo.fldCompName
HAVING (NOT (tblSessions.fldStudioNo LIKE '999'))

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