Mysql查询GROUP BY where条件LIMIT 1

Question

我在数据库中有一个名为“articles”的表

文章:

id +++   writer_id    +++     title     ++++    text
----------------------------------------------------
1           1              some title        article for writer 1 
2           1              some title        article for writer 1 
3           2              some title        article for writer 2 
4           2              some title        article for writer 2 
5           2              some title        article for writer 2
6           3              some title        article for writer 3

我需要一个查询来从表中获取最新的文章，但每个作者只有一篇文章

取决于上面的行查询应该只得到 3 行:每篇文章归一位作者所有

2           1              some title        article for writer 1 
5           2              some title        article for writer 2
6           3              some title        article for writer 3

PHP

SELECT * 
FROM articles
WHERE writer_id = ???? ;
order by id desc limit 10

提前致谢:)

Answer 1

简短而甜美:

SELECT MAX(id), writer_id, title, text FROM articles GROUP BY writer_id;