id, exam_paper_id, user_id, deleted insert into t_exam_paper_user(id, exam_paper_id, user_id, deleted) values (#{id,jdbcType=INTEGER}, #{examPaperId,jdbcType=INTEGER}, #{userId,jdbcType=INTEGER}, #{deleted,jdbcType=VARCHAR}) select * from t_exam_paper_user where user_id = #{userId} and deleted = 0 select * from t_exam_paper_user where exam_paper_id = #{examPaperId} and deleted = 0 select user_id from t_exam_paper_user where exam_paper_id = #{examPaperId} and user_id = #{createUser} insert into t_exam_paper_user(id, exam_paper_id, user_id, deleted) values (#{item.id},#{item.examPaperId},#{item.userId},#{item.deleted}) delete from t_exam_paper_user where exam_paper_id = #{examPaperId}