Select c.* from `comic` c left join `comic_dmca` cd on c.`comic_id` = cd.`comic_id` where 1  and ( cd.status_id = 1 or cd.status_id is null )  and ( cd.site_id = "3" or cd.site_id is null )  and c.`comic_id` = "635833"  and c.`status_id` = 0  and c.`is_deleted` = 0  limit 1