cantin

分类

题解(3)

/ 注册

全部文章（共26篇）

题解 | 哪些产品在特定时间段内表现最为出色

select t.product_id, p.product_name, total_sales_amount, total_sales_quantity from ( select p.product_id, ...

2025-10-03

0 44

题解 | 对商品的销售情况进行深度分析

with temp0 as ( select category as product_category, age_group, sum(price * quantity) as total_sales_a...

2025-10-03

0 39

题解 | 电商平台想要了解不同商品在不同月份的销售趋势

select t.product_id, product_name, total_sales, max_monthly_sales, min_monthly_sales, avg_monthly_sales from ( sel...

2025-10-03

0 31

题解 | 最受欢迎的top3课程

select ci.cid, count(*) as pv, sum(timestampdiff(MINUTE, start_time, end_time)) as time_len from course_info_tb ci inner join play...

2025-10-03

0 39

题解 | 分析每个员工在不同项目中的绩效情况

select e.employee_id, employee_name, performance_score as first_half_2024_score, row_number()over( partition by pf.project_id...

2025-09-30

0 33

题解 | 查询出每个运输方式在不同城市的平均运输时长以及总运输费用

select destination_city, transport_name, round(sum(timestampdiff(day,order_date,delivery_date))/count(*),2) as average_transport_duratio...

2025-09-30

0 38