SQL更新查询两个表

Question

我有两张桌子：

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

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

假设我想将m001的状态更改为0。如何使用SQL语句实现此目的？即如果model = m001，则获取id，转到table.one，将状态更改为0。

Answer 1

由于您没有提及RDBMS，请尝试以下任何一项：

MySQL

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

MSSQL

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

哪个适用于其他DBMS

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