冷艳的西红柿刷牛客

分类

/ 注册

全部文章（共19篇）

题解 | 更新员工信息表

SELECT EMPLOYEE_ID, POSITION, LAST_UPDATE_DT FROM ( SELECT EMPLOYEE_INFO.EMPLOYEE_ID, ( ...

2025-08-26

0 14

题解 | 未下单用户登陆渠道统计

#不使用group by和join而是窗口函数的写法 select channel, cnt from ( select channel, cnt, row_number() over(...

2025-08-26

0 17

题解 | 统计每个产品的销售情况

with sales_part as( select product_id, sum(monthly_quantity) * unit_price as total_sales, unit_price, sum(monthly_...

2025-08-25

0 12

题解 | 商品销售总额分布

select true_method, count(*) as cnt from ( select product_id, ( case ...

2025-08-25

0 12

题解 | 商品销售排名

select product_name, convert(sum((succ_fail) * price), signed) as total from ( select ucl.product_id, ( ...

2025-08-24

0 13

题解 | 商品价格排名

select product_id, product_name, type, price from ( with rank_product_info as( select product...

2025-08-24

0 19

题解 | 完成员工考核试卷突出的非领导员工

#注释是不使用窗口函数，直接使用group by和inner join完成 # select # emp_record.emp_id, # emp_record.emp_level, # tag # from # ( # select # ...

2025-08-24

0 14

题解 | 完成员工考核试卷突出的非领导员工

select emp_record.emp_id, emp_record.emp_level, tag from ( select emp_level, emi.emp_id, ...

2025-08-24

0 12

题解 | 查询连续登陆的用户

select lt.user_id from login_tb as lt where exists ( select 1 from login_tb as lt2 where lt2.user_id=lt.user_id an...

2025-08-23

0 13