SELECT channel_order_id,transfer_order_id FROM `dc_base_cost_first` WHERE cost_first>0 GROUP BY channel_order_id,transfer_order_id ORDER BY transfer_order_id asc limit #{v1}, #{v2};
</select>
<selectid="countChannelOrder"resultType="int">
SELECT COUNT(*) FROM (SELECT channel_order_id FROM `dc_base_cost_first` WHERE cost_first>0 GROUP BY channel_order_id) tb;
<selectid="countChannelOrder"resultType="int">
SELECT COUNT(*) FROM (SELECT channel_order_id,transfer_order_id FROM `dc_base_cost_first` WHERE cost_first>0 GROUP BY channel_order_id,transfer_order_id) tb;