数据库连接具有多个coulmns的单个记录

Question

行业表

+----+--------------+
| ID | IndustryName | 
+----+--------------+
|  1 |     Auto     |
|  2 |     Pets     |
+----+--------------+

图片表

+----+------------+--------------+
| ID | IndustryId |   ImageURL   |
+----+------------+--------------+
|  1 |     1      |      URL1    |
|  2 |     1      |      URL2    | 
|  3 |     1      |      URL3    |  
+----+------------+--------------+ 

我想获得Select Query的结果如下

 +----+------------+------------------+
 | ID | IndustryId |ImageURLContains  |  
 +----+------------+------------------+
 | 1  | Auto       |(URL1,URL2,URL3)  |
 +----+------------+------------------+

我们可以针对一个IndustryId拥有n个URL。

Answer 1

尝试使用东西功能

CREATE TABLE Images_Table(ID INT ,IndustryId INT , IMageURL NVARCHAR(50))

INSERT INTO Images_Table
SELECT 1,1,'URL1'UNION ALL
SELECT 2,1,'URL2'UNION ALL
SELECT 3,1,'URL3'

SELECT
    ID IndstryId,IndustryName,
    STUFF(
        (
            SELECT ' ,'+ISNULL(IMageURL,'')
            FROM Images_Table t2
            WHERE t2.IndustryId=t1.ID
            ORDER BY t2.Id
            FOR XML PATH('')
        ),1,2,'') ImageURL   
FROM (SELECT ID,ISNULL(IndustryName,'') IndustryName FROM Industry_Table) t1

关注输出我正在获取

IndstryId   IndustryName                                       ImageURL
----------- -------------------------------------------------- ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1           Auto                                               URL1 ,URL2 ,URL3