-- 删除文章
DELETE FROM wp_posts
WHERE post_type = 'post' AND post_status = 'publish' AND post_date_gmt BETWEEN '起始日期' AND '结束日期';

-- 删除文章对应的评论
DELETE FROM wp_comments
WHERE comment_post_ID IN (SELECT ID FROM wp_posts WHERE post_type = 'post' AND post_status = 'publish' AND post_date_gmt BETWEEN '起始日期' AND '结束日期');

-- 删除文章对应的图片（假设图片文件名包含文章ID）
DELETE FROM wp_posts
WHERE post_type = 'attachment' AND post_parent IN (SELECT ID FROM wp_posts WHERE post_type = 'post' AND post_status = 'publish' AND post_date_gmt BETWEEN '起始日期' AND '结束日期');