rt,按月显示每月的相关数据,是把时间截成月的区间然后group by吗?
回复讨论(解决方案)
对!
对!
试了下,但是查不出month
“select date_format(add_time,’%y-%m’) as month, sum(order_amount) from zb_order where order_state=’40’ group by month”;
对!
试了下,但是查不出month
“select date_format(add_time,’%y-%m’) as month, sum(order_amount) from zb_order where order_state=’40’ group by month”;
原来漏了个from_unixtime
你这样写是对的
报什么错?