`id`,`paper_id`,`qu_id`,`qu_type`,`answered`,`answer`,`sort`,`score`,`actual_score`,`is_right` SELECT IFNULL(SUM(actual_score),0) as total FROM el_paper_qu WHERE paper_id=#{paperId} AND is_right=true AND qu_type < 4 SELECT IFNULL(SUM(actual_score),0) as total FROM el_paper_qu WHERE paper_id=#{paperId} AND qu_type=4 SELECT pq.*,eq.content,eq.image FROM el_paper_qu pq LEFT JOIN el_qu eq ON pq.qu_id = eq.id WHERE pq.paper_id=#{paperId} ORDER BY pq.sort ASC