题解 | 获取指定客户每月的消费额
获取指定客户每月的消费额
https://www.nowcoder.com/practice/ed04f148b63e469e8f62e051d06a46f5
select
date_format(t_time, '%Y-%m') as time,
sum(t_amount) as total
from
trade
where
t_cus = 101
and year(t_time) = 2023
and t_type = 1
group by
time
order by
time;
date_format:'%Y-%m-%d'
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