选择获取与MySQL组中的最大值对应的整行

Question

在使用GROUP BY之后，当我使用Max查找特定MySQL组中某个字段的最大值时，是否可以得到包含最大值的整行？

Answer 1

我想知道这是否行得通：

select * from table where id in (select distinct max(id) from table group by name)

Answer 2

我在写一些论坛代码的时候偶然发现了这个帖子。我想获取每个线程的最新帖子，并将其显示在特定板子的线程列表中。

Quassnoi上面的回答对我很有帮助，我能够适应它。以下是代码，以防对其他人有帮助：

SELECT p.id As post_id, p.post_number, p.topic_id
FROM forum_post p, (
    SELECT topic_id, MAX(post_number) As max_post_number
    FROM   forum_post d
    GROUP  BY topic_id) dd
WHERE p.id =
(
    SELECT id
    FROM   forum_post
    WHERE  topic_id = dd.topic_id
    AND    post_number = dd.max_post_number
    ORDER  BY topic_id DESC, post_number DESC, id DESC
    LIMIT  1
)

Answer 3

SELECT  di.id, di.orderer, di.ghigh, di.glow
FROM    (
        SELECT  glow, MIN(orderer) AS orderer
        FROM    t_distinct d
        GROUP BY
                glow
        ) dd
JOIN    t_distinct di
ON      di.id =
        (
        SELECT  id
        FROM    t_distinct ds
        WHERE   ds.glow = dd.glow
                AND ds.orderer = dd.orderer
        ORDER BY
                glow DESC, orderer DESC, id DESC
        LIMIT 1
        )

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