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
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 order_details o join customer_info c using (order_id) where order_date between '2024-01-01' and '2024-06-30' group by category_id order by category_id
查看18道真题和解析
