如何结合MySQL查询？

Question

如何组合MySQL查询以删除表中列数据等于其他表的SELECT的行？

我想到： DELETE FROM debts WHERE name = (SELECT name FROM payers)

Answer 1

不使用=，而是将其更改为IN，因为子查询可以返回多行。

DELETE FROM debts WHERE name IN (SELECT name FROM payers)

但我更喜欢JOIN表而不是使用IN。

DELETE  a
FROM    debts a
        INNER JOIN payers b
            ON a.name = b.name