Question

我正在尝试在MYSQL中运行此删除查询（通过phpMyAdmin）并且我一直收到此错误：

DELETE
p,pm 
from wp_posts p
inner join wp_postmeta pm on pm.post_id = p.id
where p.id in (SELECT  MIN( id ) AS min_id
      FROM wp_posts inner join wp_postmeta on (wp_posts.ID=wp_postmeta.post_id and  meta_key = 'old_id')
      WHERE post_type = 'post'
      GROUP BY meta_value
      HAVING COUNT( * ) > 1)

任何想法为什么？

Answer 1

查看您的代码
您不应该在IN子句

的子选择中使用

DELETE p, pm 
from wp_posts as p
inner join wp_postmeta as pm on pm.post_id = p.id
where p.id in (SELECT  MIN( id ) 
      FROM wp_posts 
      inner join wp_postmeta on (wp_posts.ID=wp_postmeta.post_id 
                                  and  meta_key = 'old_id')
      WHERE post_type = 'post'
      GROUP BY meta_value
      HAVING COUNT( * ) > 1)

删除2加入get错误 - mysql

1 个答案: