Visual Studio 2008 中的多个下拉列表未正确过滤

Question

我正在使用 Visual Basic 2008 SSRS，后端是 SQL Server 2008 来创建报告。我正在尝试创建 2 个参数化下拉列表，用户可以从中 select 过滤报告中的数据。出于某种原因，我似乎无法让两个参数都正确地只过滤一个过滤器。当我运行 visual studio 2008 年的报告时，我选择 DROPDOWN1 等于 2，DROPDOWN2 等于 4。所以它应该只显示一行，但出于某种原因，似乎只有第二个过滤器有效。我可能只需要修改我的 sql 吗？任何帮助将不胜感激，谢谢。

**Table 1**      **Table 2**                **Table 3** 
Key1        Key2    Data1       Key3    Data2   Data3
1           1       HI          2       GREEN   WHITE
4           1       YOU         2       GREEN   WHITE
            2       HEY         3       RED     BLACK
            3       HI          1       ORANGE  PURPLE
            1       HEY         4       BLUE    BLACK
            4       HEY         4       BLUE    PURPLE



**Current Result**              **Desired**     
Data1   Data2   Data3       Data1   Data2   Data3
HI      ORANGE  PURPLE      HI      ORANGE  PURPLE
HEY     BLUE    PURPLE              

**Parameters-** @DROPDOWN1- Available Values
Label Value
HIHEY   1
HI      2

**@DROPDOWN2- Avilable Values**
Label     Value
GREENBLUE   3
PURPLE      4

Query Designer- SELECT L.Key1, 
C.Data,
aa.Data2,
aa.Data3

 FROM Table1 AS L INNER JOIN Table2 C ON L.Key1 = C.Key2
 INNER JOIN Table3 aa on L.Key1 = aa.Key3 

 WHERE
((@DropDown1= 1 AND C.Data1 ='HI' OR C.Data1 ='HEY' )
OR
(@DropDown1= 2 AND C.Data1 ='HI'))

 AND

 ((

 (@DropDown2= 3 AND aa.Data2 IN ('GREEN', 'BLUE'))  
 OR
 (@DropDown2= 4 AND aa.Data3 ='PURPLE') 

 ))

Answer 1

不太清楚其中的逻辑，但从您想要的结果来看，您的 Where 条件中的 OR 子句需要用括号括起来。

((@DropDown1= 1 AND (C.Data1 ='HI' OR C.Data1 ='HEY') )

完整代码演示：

declare @table1 table (key1 int)
declare @table2 table (key2 int, data1 varchar(10))
declare @table3 table (key3 int, data2 varchar(10), data3 varchar(10))

insert into @table1 select 1 union all select 4

insert into @table2 
values
(1, 'HI'), 
(1, 'YOU'), 
(2, 'HEY'), 
(3, 'HI'), 
(1, 'HEY'), 
(4, 'HEY')

insert into @table3
values
(2, 'GREEN', 'WHITE'),
(2, 'GREEN', 'WHITE'),
(3, 'RED', 'BLACK'),
(1, 'ORANGE', 'PURPLE'),
(4, 'BLUE', 'BLACK'),
(4, 'BLUE', 'PURPLE')

select * from @table1
select * from @table2
select * from @table3

declare @DropDown1 int = 2, @DropDown2 int = 4

SELECT L.Key1, C.Data1,aa.Data2,aa.Data3
 FROM @table1 AS L  JOIN @table2 C ON L.Key1 = C.Key2
    INNER JOIN @table3 aa on L.Key1 = aa.Key3 
 WHERE (
 (@DropDown1= 1 AND (C.Data1 ='HI' OR C.Data1 ='HEY') )
OR
(@DropDown1= 2 AND C.Data1 ='HI'))

 AND
 ((
 (@DropDown2= 3 AND aa.Data2 IN ('GREEN', 'BLUE'))  
 OR
 (@DropDown2= 4 AND aa.Data3 ='PURPLE') 
 ))

Visual Studio 2008 中的多个下拉列表未正确过滤

Multiple Dropdown in Visual Studio 2008 not filtering correctly

parameters

sql-server-2008

visual-studio-2008

reporting-services