花猫大叔 WordPress 忘记登录密码怎么办？重置登录密码的三种方法
https://blog.csdn.net/weixin_44854668/article/details/133371287
1- 删除媒体库
DELETE from wp_posts where post_type = 'attachment'
2-
wp删除指定分类下面所有的文章，实测有效！
SQL命令如下 执行前，记得一定要备份数据，数据无价。
delete from wp_posts using wp_posts, wp_term_relationships, wp_term_taxonomy where wp_posts.id = wp_term_relationships.object_id and wp_term_relationships.term_taxonomy_id = wp_term_taxonomy.term_taxonomy_id and wp_term_relationships.term_taxonomy_id = 16;（16是替换为你要删除的分类ID）
