如何在MySQL中使用单个选择查询更新多列？

Question

Let take a example, there are two tables as bellow.

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

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

I want to update OldData table with NewData table.

For that purpose I am trying to use the following query:

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

But it gives a syntax error.

What is the proper way of doing what I try?

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

尝试这个：

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

Answer 3

Try This :

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