如果另一个表中的ID相同，则删除行

Question

我有两个表（Table1和Table2。）如果table1中的id exsits我想删除table2中的所有行

到目前为止

代码：

DELETE a.id, a.car, a.boat 
FROM Table2 a 
LEFT JOIN Table1 b ON b.id = a.id

表：

• 表1：id, car, boat
• 表2：id, car, boat（如果ID与table1中的ID相同，则删除）

Answer 1

Delete from table2 where table2.ID IN (select id from table1)

Answer 2

DELETE Table2
  FROM Table2
  JOIN Table1 ON Table1.ID = Table2.ID

Answer 3

首先在回滚事务中对此进行测试（总是通过删除来做这个习惯）

DELETE FROM table2
    WHERE table2.id IN (SELECT table1.id FROM table1)