SQL更新查询了两个表

Question

我有两个表：

Table Name: One 
id | status 
----+-------- 
1 | 1 
2 | 1 
3 | 1 

Table Name: Two 
id | model 
----+-------- 
1 | m001 
2 | m002 
3 | m003 

比方说，我想的m001状态更改为0。我如何使用SQL语句实现这一点？也就是说，如果模型= M001，获得ID，去table.one，0

Answer 1

既然你没有提到的变化状态，您可以RDBMS，尝试任何这些：

对于MySQL

UPDATE One a 
     INNER JOIN Two b 
      ON a.ID = b.ID 
SET  a.Status = 0 
WHERE b.model = 'm001' 

对于MSSQL

UPDATE a 
SET  a.Status = 0 
FROM One a 
     INNER JOIN Two b 
      ON a.ID = b.ID 
WHERE b.model = 'm001' 

其他DBMS其中一期工程

UPDATE One 
SET  Status = 0 
WHERE ID = ( SELECT ID 
       FROM two 
       WHERE model = 'm001') 

Answer 2

UPDATE TabelOne as a SET Status = 0 
    WHERE a.id = (select id from two where model = 'm001') 

我的SQL -

UPDATE TabelOne as a 
    INNER JOIN two as b ON a.id = b.id and b.model = 'm001' 
    SET Status = 0