insert into exam_paper_question (`paper_id`,`pos`,`question_id`,`score`,`type`) values (#{paperId},#{pos},#{questionId},#{score},#{type}) insert ignore into exam_paper_question (`paper_id`,`pos`,`question_id`,`score`,`type`) values (#{item.paperId},#{item.pos},#{item.questionId},#{item.score},#{item.type}) delete from exam_paper_question where paper_id=#{paperId} select * from exam_paper_question where paper_id=#{paperId} select * from exam_paper_question where paper_id=#{paperId} and question_id=#{questionId} select * from exam_paper_question where paper_id=#{paperId}