DWS层 (四)优惠券主题优惠券主题
文章目录优惠券主题优惠券主题1)建表语句DROP TABLE IF EXISTS dws_coupon_info_daycount;CREATE EXTERNAL TABLE dws_coupon_info_daycount( `coupon_id` STRING COMMENT '优惠券ID', `get_count` BIGINT COMMENT '被领取次数', `order_count` BIGINT COMMENT '被使用(下单)次数', `order_