DELETE FROM channel_room WHERE channel_id = #{id} SELECT uid FROM channel_room WHERE channel_id = #{id} INSERT INTO channel_room (channel_id, uid) VALUES (#{id}, #{value}) SELECT r.uid, r.room_id AS roomId, r.tag_id AS tagId, r.room_tag AS roomTag, r.avatar AS avatar, r.type AS type, r.title AS title, u.erban_no AS erbanNo FROM room r LEFT JOIN users u ON u.uid = r.uid LEFT JOIN channel_room cr ON cr.uid = r.uid WHERE cr.channel_id = #{channelId} DELETE FROM channel_room WHERE channel_id = #{channelId} AND uid = #{uid}