[英]Update table from another table by id and select
We have 2 tables 我们有2张桌子
Titles 职称
+------+--------------- ----+---------------------+---------------------+
| id | title | subs_updated | created_at |
+------+--------------------+---------------------+---------------------+
| 104 | movie 1 | 2014-11-13 05:40:51 | 2014-11-11 12:08:28 |
| 129 | movie 2 | | 2014-11-11 12:08:29 |
+------+--------------------+---------------------+---------------------+
Subs 潜艇
+----+----------+----------+---------+---------------------+
| id | label | title_id | subs | created_at |
+----+----------+----------+---------+---------------------+
| 13 | English | 104 | English | 2014-11-12 05:05:39 |
| 15 | Italian | 104 | Italian | 2014-11-12 05:25:00 |
| 16 | Dutch | 104 | Dutch | 2014-11-13 05:40:51 |
| 18 | Arabic | 129 | Arabic | 2014-11-12 06:05:28 |
| 19 | Arabic | 129 | Arabic | 2014-11-12 06:07:23 |
+----+----------+----------+---------+---------------------+
Please some help 请帮忙
try this 尝试这个
UPDATE
`title`
SET
subs_updated =
(SELECT
created_at
FROM
`subs`
WHERE subs.title_id = title.id ORDER BY created_at DESC LIMIT 1)
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