insert into t_part_back( code,creator,back_day, create_time, type, remark, status,updater, update_time, create_id,back_num,user_name )values (#{code},#{creator},#{backDay},now(),#{type},#{remark},#{status},#{updater},now(),#{createId},#{backNum},#{userName}) insert into t_part_back_details( back_id, back_num, part_id, part_type, part_name, part_model, part_unit, remark ) values (#{param.id},#{item.backNum},#{item.partId},#{item.partType},#{item.partName}, #{item.partModel},#{item.partUnit},#{item.remark})