如何编写 Where 子句以根据参数选择传递数据

Question

我正在使用 SSRS 和 SSMS 2008 R2。我有 2 份报告，用户希望将它们合并为 1 份报告，并且可以选择 获取 2013 年或 2014 年数据的日​​期。两个报告中的所有数据集都相同，除了一个 2013 年组与 2014 年组客户的每个报告中的数据集具有不同的硬编码 Where 子句值。 我想我可以在 Where 子句中做一个 CASE 语句来根据 @Startdate 参数选择硬编码的 2013 组或 2014 组， 但这不起作用，关于如何做到这一点的任何想法？

这是 2013 年查询和 2014 年查询，即 Where 子句是 2 份报告之间的唯一区别：

    SELECT [FISCAL YEAR]
,COUNT(*) AS EXPECTED
,SUM(Amount) AS Total
FROM dbo.Table1 T1
INNER JOIN dbo.Table2 T2
    ON T1.primarykey = T2.primarykey
WHERE Field1 IN (
        5555
        ,6666
        )
    AND Field2 IN (
        2222
        ,3333
        )
    AND YEAR(T1.DATE) = YEAR(@StartDate)
    AND T1.AMOUNT >= 25000
    AND T1.DESCRIPTION IN (
        'The Campaign - YYY - 2011-2015'
    ,'The Campaign - ZZZ - 2011-2015'
    ,'2013 AAA Goal'
    ,'2013 BBB Goal'
    ,'2013 CCC Goal'
    ,'2013 DDD Goal'
    ,'2013 EEE'
    ,'2013 FFF'
    )
GROUP BY RIGHT(CONVERT(VARCHAR, T1.DATE, 1), 2)

SELECT [FISCAL YEAR]
    ,COUNT(*) AS EXPECTED
    ,SUM(Amount) AS Total
FROM dbo.Table1 T1
INNER JOIN dbo.Table2 T2
    ON T1.primarykey = T2.primarykey
WHERE Field1 IN (
        5555
        ,6666
        )
    AND Field2 IN (
        2222
        ,3333
        )
    AND YEAR(T1.DATE) = YEAR(@StartDate)
    AND T1.AMOUNT >= 25000
    AND T1.DESCRIPTION IN (
        'The Campaign - YYY - 2011-2015'
        ,'The Campaign - ZZZ - 2011-2015'
        ,'2014 AAA Goal'
        ,'2014 BBB Goal'
        ,'2014 CCC Goal'
        ,'2014 DDD Goal'
        ,'2014 EEE'
        ,'2014 FFF'
        ,'2014 GGG'
        ,'2014 HHH'
        ,'2014 JJJ'
        ,'2014 LLL'
        )
GROUP BY RIGHT(CONVERT(VARCHAR, T1.DATE, 1), 2)

Answer 1

不知道你的表和数据库。我将联合两个查询之间的所有内容，并在联合上添加带有新年列的参数。

Select * from 
(
SELECT [FISCAL YEAR]
,COUNT(*) AS EXPECTED
,SUM(Amount) AS Total, YEAR(T1.DATE) as 'pYear'
FROM dbo.Table1 T1
INNER JOIN dbo.Table2 T2
    ON T1.primarykey = T2.primarykey
WHERE Field1 IN (
        5555
        ,6666
        )
    AND Field2 IN (
        2222
        ,3333
        )
    --AND YEAR(T1.DATE) = YEAR(@StartDate)
    AND T1.AMOUNT >= 25000
    AND T1.DESCRIPTION IN (
        'The Campaign - YYY - 2011-2015'
    ,'The Campaign - ZZZ - 2011-2015'
    ,'2013 AAA Goal'
    ,'2013 BBB Goal'
    ,'2013 CCC Goal'
    ,'2013 DDD Goal'
    ,'2013 EEE'
    ,'2013 FFF'
    )
GROUP BY RIGHT(CONVERT(VARCHAR, T1.DATE, 1), 2)
Union ALL
SELECT [FISCAL YEAR]
    ,COUNT(*) AS EXPECTED
    ,SUM(Amount) AS Total, YEAR(T1.DATE) as 'pYear'
FROM dbo.Table1 T1
INNER JOIN dbo.Table2 T2
    ON T1.primarykey = T2.primarykey
WHERE Field1 IN (
        5555
        ,6666
        )
    AND Field2 IN (
        2222
        ,3333
        )
    --AND YEAR(T1.DATE) = YEAR(@StartDate)
    AND T1.AMOUNT >= 25000
    AND T1.DESCRIPTION IN (
        'The Campaign - YYY - 2011-2015'
        ,'The Campaign - ZZZ - 2011-2015'
        ,'2014 AAA Goal'
        ,'2014 BBB Goal'
        ,'2014 CCC Goal'
        ,'2014 DDD Goal'
        ,'2014 EEE'
        ,'2014 FFF'
        ,'2014 GGG'
        ,'2014 HHH'
        ,'2014 JJJ'
        ,'2014 LLL'
        )
GROUP BY RIGHT(CONVERT(VARCHAR, T1.DATE, 1), 2)
) as t 
where pYear =YEAR(@StartDate)

希望有帮助