使用INNER JOIN基于SELECT查询从表中删除

Question

我想根据我从其他查询中获得的记录删除一些记录。问题是我有语法错误，我无法解决。

以下是我正在使用的查询：

DELETE FROM `tickets` as c 
WHERE c.TICKET_ID IN ( SELECT a.TICKET_ID 
FROM `tickets` as a 
INNER JOIN `old_tickets` as b 
ON b.TICKET_ID = a.TICKET_ID);

Answer 1

为什么你需要IN子句，只需加入

即可

delete c from tickets c
join old_tickets oc on oc.TICKET_ID = c.TICKET_ID

Answer 2

试试这个

DELETE FROM tickets as a 
INNER JOIN old_tickets as b ON b.TICKET_ID = a.TICKET_ID

Answer 3

你必须删除子查询中的Join，无论如何你要检查来自ticket1的所有TICKET_ID，它们在old_tickets表中有匹配;

以便您的查询变为：

DELETE FROM tickets t1
 WHERE t1.TICKET_ID IN (SELECT t2.TICKET_ID
                        FROM old_tickets t2)