mysql 獲得最新的數據並且去除重復
商品表 product 字段 id、 product_code、product_name、create_date select * from (select *,product_code a ...
商品表 product 字段 id、 product_code、product_name、create_date select * from (select *,product_code a ...
DELETE consum_record FROM consum_record, ( SELECT min(id) id, user_id, monetary, ...