UPDATE batch_course del_flag = #{item.delFlag} where batch_uuid = #{item.batchUuid} and course_uuid = #{item.courseUuid} select bc.*,c.course_name from th_batch_course bc left join th_course c on c.uuid = bc.course_uuid where bc.del_flag = 0 and bc.batch_uuid in #{batchUuid} SELECT bc.*, c.course_name , (SELECT sum(cc.duration) from th_course_chapter cc where cc.course_uuid = bc.course_uuid) duration FROM th_batch_course bc LEFT JOIN th_course c ON c.uuid = bc.course_uuid WHERE bc.del_flag = 0 AND bc.batch_uuid = #{batchUuid}