我想将用户id 1的年份级别从tbl_profile更改为'3rd',并且我想从表中引用名称'captain america',因为他们拥有相同的user_id。加入两个表并更新列值
这里是我的示例表:
tbl_profile
users_id year_level
1 none
tbl_usersinfo
users_id full_name
1 captain america
这里是我的查询:
UPDATE tbl_profile AS p
SET p.year_level = '3rd'
LEFT JOIN
tbl_usersinfo AS i
ON
i.users_id = p.users_id
WHERE
i.full_name = 'captain america';
我希望它是这样的,但我知道,这个查询是不可能的,因为我的天堂” t指定了full_name列的来源:
UPDATE tbl_profile AS p
SET p.year_level = '3rd'
WHERE i.full_name = 'captain america'
LEFT JOIN
tbl_usersinfo AS i
ON
i.users_id = p.users_id
您可以使用In ...更新...我在哪里(从tbl_usersinfo选择user_id,其中full_name ='美国队长') – okaram 2014-09-12 14:13:40