题解 | #计算商城中2021年每月的GMV#
计算商城中2021年每月的GMV
http://www.nowcoder.com/practice/5005cbf5308249eda1fbf666311753bf
SELECT DATE_FORMAT(event_time,'%Y-%m') as month
,round(sum(case when total_amount<0 then 0 else total_amount end),0) as GMV
from tb_order_overall
where DATE_FORMAT(event_time,'%Y') = 2021
group by month
HAVING GMV > 100000
order by GMV