在SQL中列舉枚舉？

Question

說，還有2個表：

Person 
| id | name | 

LanguagesSpoken 
| person_id | language_name | 

有沒有一種方法來創建將包含2列的觀點：person_name和languages_spoken作爲一個逗號分隔的列表？

我正在開發針對SQLite。

Answer 1

用途：

SELECT p.name, 
     GROUP_CONCAT(ls.language_name, ',') 
    FROM PERSON p 
    JOIN LANGUAGESSPOKEN ls ON ls.personid = p.personid 
GROUP BY p.name 

參考：SQLite aggregate functions

Answer 2

select name, group_concat(language_name) as languages 
from person p inner join languagesSpoken l 
on p.id = l.person_id 
group by l.person.id 

Answer 3

GROUP_CONCAT（）是你的答案。