Question

我有此sql语句删除一些行：

DELETE 
FROM
  `user_group_membership` g
  INNER JOIN `users` u ON u.user_id = g.user_id
WHERE
  u.`user_id` NOT IN (?, ?, ?)
  AND g.group_id IN (9, 6)
  AND u.`lifetime_supporter` = 0
  AND u.supporter_type = 'special'

我收到一个SQL错误“ SQL ERROR SQLSTATE [42000]：语法错误或访问冲突：1064您的SQL语法有错误；请查看与您的MySQL服务器版本相对应的手册，以在附近使用正确的语法” 'g INNER JOIN users u在u.user_id = g.user_id上u。user_id不在（（？，？，？“

不能完全确定这里出了什么问题，有人可以给我指点吗？

Answer 1

您需要指定需要从哪个表中删除记录。如果要从表user_group_membership中删除，则需要在DELETE命令后指定表，如下所示：


DELETE g
FROM
  `user_group_membership` g
  INNER JOIN `users` u ON u.user_id = g.user_id
WHERE
  u.`user_id` NOT IN (?, ?, ?)
  AND g.group_id IN (9, 6)
  AND u.`lifetime_supporter` = 0
  AND u.supporter_type = 'special'

这个删除语句怎么了

1 个答案: