帶有多個過濾器的SQL Server查詢

Question

我在3個表「table1」，「table2」，「tableMap」上寫了一個查詢。基於下拉列表中的選定值。但我沒有得到預期的結果。請幫忙。

下拉1：

<Promo Name> 
- All - value = "" 
- ABC - value = "1" 
- XYZ - value = "2" 

下拉2：

<Store Type> 
- All - value = "" 
- Type 1 - value = "1" 
- Type 2 - value = "2" 

下拉3：

<Store Area> 
- All - value = "" 
- Area 1 - value = "1" 
- Area 2 - value = "2" 

表1：

ID | Store Name | Store Address | Store Type | Store Area 
---+------------+---------------+------------+----------- 
1 | ABC  | 112 test road| Type 1  | Area 1 
2 | XYZ  | 22 test2 road| Type 2  | Area 2 

表2：

ID | Promo Name 
---+------------ 
1 | promo 1  
2 | promo 2  

表地圖：

ID | Promo ID | Store Type | Store Area 
---+------------+----------------+------------+----------- 
1 | 1   | 2,1  | 
2 | 2   |   | 1 

爲[存儲類型]和[存儲區]的值是的ID [表1] 因此，在下面的查詢，我們應將[Store Type]/[Store Area]映射到[Table 1]的[ID]

我正在嘗試編寫查詢，以便根據下拉列表中的值選擇結果。

查詢：

declare @promoname varchar(255), 
     @type varchar(255), 
     @area varchar(255) 

select 
    t2.Promo Name, t2.ID, t1.Store Name, t1.Store Address 
from 
    [Tablemap] tm 
inner join 
    [Table2] t2 on tm.Promo ID = t2.ID 
where 
    (@promoname = '' or t2.[promoname] = @promoname) 
    and (@type = '' or @type in (select [name] 
           from dbo.SplitString (tm.Store Type))) 

結果 - 預期 - （但不是因爲我沒加上面，而不是位置表知道如何添加它上面的查詢工作）：

Promo Name | Store Name | Address 
-----------+------------+--------------- 
promo 1 | ABC  | 112 test road 
promo 2 | ABC  | 112 test road 

Answer 1

請嘗試下面的代碼。

declare @promoname varchar(255), 
     @type varchar(255), 
     @area varchar(255) 

select t2.Promo Name, t2.ID, t1.Store Name, t1.Store Address 
from 
    [Tablemap] tm 
inner join [Table2] t2 on tm.Promo ID = t2.ID 
inner join [Table1] t1 on tm.Promo ID = t1.ID 
where (@promoname = '' or t2.[promoname] = @promoname) 
    and (@type = '' or t1.[Store Type] in (select [name] from dbo.SplitString (tm.Store Type)))