UPDATE drive_school_process SET exam_status = '9' WHERE user_id IN #{item} AND course_id = #{courseId} AND `subject` = #{subject} AND coach_id = #{coachId} AND exam_status IS NULL AND deleted =0 SELECT dsp.* FROM drive_school_process dsp WHERE dsp.user_id = #{userId} ORDER BY dsp.`subject` DESC, dsp.create_time DESC LIMIT 1