如何用MySQL中的单个选择查询更新多列？

Question

举一个例子，下面有两个表格。

OldData 
----------- 
    id 
    name 
    address 

NewData 
----------- 
    nid 
    name 
    address 

我想NewData表更新OldData表。

为了这个目的，我尝试使用下面的查询：

UPDATE OldData SET (name, address) = (SELECT name, address FROM NewData WHERE nid = 234) 
WHERE id = 123 

但是它给出了一个语法错误。

做什么我尝试的正确方法是什么？

Answer 1

UPDATE OldData o, NewData n 
SET n.name = o.name, n.address = o.address 
where n.nid=234 and o.id=123; 

Answer 2

试试这个：

Update oldData set name = (select name from newData where nid = 234),address = (select address from newData where nid = 123); 

Answer 3

试试这个：

UPDATE OldData a,NewData b 
SET a.name = b.name , a.address = b.address 
WHERE a.id=123 AND b.nid = 234