通過基於最大值的聯接獲取整行

Question

在mysql中，我有以下兩個表：

**Seasons**
id
number
current

**Episodes**
id
number
season_id
other_info

我想從得到一個完整的排Episodes ，從加盟排Seasons都基於最大number兩表的價值。

例如，如果我有第1、2、3季，我想從最近的第一個季中獲取最新的劇集。

我從以下查詢開始：

SELECT e.id as episode_id, s.id as season_id, MAX(s.number) AS season_number, MAX(e.number) AS episode_number, e.other_info
FROM (episodes AS e)
JOIN seasons AS s ON e.season_id=s.id
WHERE s.current =  1

可以，但是顯示錯誤的other_info值。 我知道這是因為MAX()行進行了分組，但是其他值是隨機的，因此我認為它只是從可用的第一行顯示other_info 。

環顧四周，我發現了我認為可以解決的問題，但沒有：

SELECT e.id as episode_id, s.id as season_id, MAX(s.number) AS season_number, MAX(e.number) AS episode_number, e.other_info
FROM (episodes AS e)
JOIN seasons AS s ON e.season_id=s.id
WHERE s.current =  1 AND
e.number = (select max(sube.number) from episodes sube);

在這種情況下，我只獲取所有NULL值。

Answer 1

我認為這將幫助您：

SELECT seasons.*, episodes.* 
FROM episodes
INNER JOIN seasons ON episodes.season_id = seasons.id
ORDER BY seasons.number DESC ,episodes.number DESC 
limit 0,1