如何在MySQL中使用单个选择查询更新多个列？

Question

举个例子，下面有两个表。

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

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

我想用OldData表更新NewData表。

为此，我尝试使用以下查询：

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

但它给出了语法错误。

我尝试做什么的正确方法是什么？

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