MySQL - 选择俱乐部名称并在一个查询中列出所有成员？

Question

1. 我有一个＆＃34;俱乐部＆＃34;表和＆＃34;成员＆＃34;表
2. 我想查询返回俱乐部名称（clubs.name）和每个成员的昵称（members.nickname）

我可以使用内部联接来获取它们，

SELECT clubs.name AS `Club Name`, members.nickname AS `Member Handle`
FROM clubs
INNER JOIN members ON clubs.club_id = members.club_id

但是显示了每个member.nickname的club.name字段。

| Club Name   | Member Handle |
-------------------------------   
| Club Yellow | Jim-Bob       |
| Club Yellow | Clem          | 
| Club Yellow | Mustache Pete |
| Club Green  | Ladyhawke     |
| Club Green  | Rosie         |

是否可以接收这样的结果？

| Club Name   | Member Handle |
-------------------------------   
| Club Yellow | Jim-Bob       |
|             | Clem          | 
|             | Mustache Pete |
| Club Green  | Ladyhawke     |
|             | Rosie         |

由于

Answer 1

没有在mysql中你无法生成这样的结果，你需要使用应用程序级别来完成它。但是，您可以格式化数据，即将所有member-handle格式化为逗号分隔值

SELECT 
clubs.name AS `Club Name`,
group_concat(members.nickname) AS `Member Handle`
FROM clubs
INNER JOIN members ON clubs.club_id = members.club_id 
group by clubs.name