题解 | 查询出每个品牌在不同月份的总销售额以及购买该品牌商品的用户的平均年龄
查询出每个品牌在不同月份的总销售额以及购买该品牌商品的用户的平均年龄
https://www.nowcoder.com/practice/a50c67d3374f4d0e85869d3e48e02c0a
with t1 as (
select order_id,category_id,order_amount,order_date
from order_details
where order_date between '2024-01-01' and '2024-06-30'
)
select category_id,sum(order_amount) total_sales,
sum(if(customer_gender='男',1,0)) male_customers,
sum(if(customer_gender='女',1,0)) female_customers
from t1 join customer_info c on t1.order_id = c.order_id
group by category_id
order by category_id
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