如何結合MySQL查詢？

Question

如何結合MySQL查詢刪除表上的行數據等於其他表的SELECT？

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

Answer 1

而不是使用=的，將其更改爲IN，由於子查詢可以返回多個行。

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

但我更喜歡JOIN的表比使用IN。

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