Mysql更新查询有三个表

Question

我目前正尝试根据三个表之间的联合编写一个sql语句，并且我不断收到同样的错误。这是我的代码：

UPDATE l SET name=n.title FROM location as l INNER JOIN location_instance as i ON l.lid=i.lid INNER JOIN node as n ON n.nid = i.nid

总共有三个表：[location：（lid，name）]，[location_instance（nid，lid）]和[node（nid）]。

很抱歉，如果我的问题与你无关，我仍然是这个领域的初学者。 感谢

Answer 1

from

中没有update条款

UPDATE location as l
INNER JOIN location_instance as i
ON l.lid=i.lid 
INNER JOIN node as n 
ON n.nid = i.nid
SET l.name=n.title

Answer 2

请试试这个：

UPDATE location as l SET name=n.title 
INNER JOIN location_instance as i ON l.lid=i.lid 
INNER JOIN node as n ON n.nid = i.nid