此mysql语法不正确。它出什么问题了？

Question

This code doesn't work on mysql: 此代码在mysql上不起作用：

update member
set member.xy = memba.surba
from memba
where member.id =memba.id

The code below0 works: 以下代码0有效：

update member inner join memba on member.id =memba.id
set member.xy = memba.surba

Could you please explain what's wrong with the first code? 您能解释一下第一个代码怎么了吗？

Answer 1

Multiple-table syntax: 多表语法：

UPDATE [LOW_PRIORITY] [IGNORE] table_references
    SET col_name1={expr1|DEFAULT} [, col_name2={expr2|DEFAULT}] ...
    [WHERE where_condition]

It would seem that you have a FROM clause that is not part of the update statement in MySQL. 看来您有一个FROM子句，它不是MySQL中update语句的一部分。

此mysql语法不正确。 它出什么问题了？