Question

我在IF（）条件下执行SUB SELECT时遇到问题。

如果类型不等于某个值，我试图让它选择MIN节省的时间，不包括计算中的那个值。

这是我当前的SQL查询，除了IF（）：

之外

SELECT
t.episode,
t.anime_id,
MAX(t.type) as type,
MIN(t.HD) as HD,
MAX(t.thumbnail) as thumbnail,
IF((MAX(t.type)!="raw"),(SELECT MIN(e.saved) FROM anime_episodes e WHERE e.type=MAX(t.type) AND t.episode=e.episode AND t.anime_id=e.anime_id GROUP BY e.anime_id, e.episode), (MIN(t.saved))) as time,
// UP HERE ^
MAX(t.filler) as filler,
m.anime_name,
m.furl,
m.video_thumb
FROM anime_episodes t
LEFT JOIN anime_list m ON
( t.anime_id=m.anime_id )
WHERE t.approved=1 AND t.locked=0 AND m.status=0 AND t.episode>=m.latest_ep
GROUP BY t.anime_id, t.episode
ORDER BY time DESC LIMIT 0,24

我的语法有什么问题吗？它对我来说很好，但错误是：

SQL error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE type!="raw")) as time, MAX(t.filler) as filler,m.anime_name, m.furl, m.vid' at line 1

编辑：正确答案，但我必须添加一些分组，因为它返回了多个结果。谢谢！

Answer 1

您忘记添加from table声明

试试这个::

SELECT
t.episode,
t.anime_id,
MAX(t.type) as type,
MIN(t.HD) as HD,
MAX(t.thumbnail) as thumbnail,
IF((type="raw"),(MIN(t.saved)), (SELECT MIN(saved) from  anime_episodes WHERE type!="raw")) as time,
// UP HERE ^
MAX(t.filler) as filler,
m.anime_name,
m.furl,
m.video_thumb
FROM anime_episodes t
LEFT JOIN anime_list m ON
( t.anime_id=m.anime_id )
WHERE t.approved=1 AND t.locked=0 AND m.status=0 AND t.episode>=m.latest_ep
GROUP BY t.anime_id, t.episode
ORDER BY time DESC LIMIT 0,24

MySQL IF（）子选择

1 个答案: