Each row of this table indicates the ID of a department and its name. A company's executives are interested in seeing who earns the most money in each of the company's departments. Ahigh earnerin a department is an employee who has a salary in thetop three uniquesalaries for that depart...
2.先找出每个部门薪水第三高的薪水A。每个人的薪水只要大于等于A,他肯定在这三批人中 SELECT*FROMEmployee e1LEFTJOINEmployee e2ON(e1.DepartmentId=e2.DepartmentIdANDe1.Salary>e2.Salary)LEFTJOINEmployee e3ON(e2.DepartmentId=e3.DepartmentIdANDe2.Salary>e3.Salary); +---+---+---+---+---+---...
1、题目名称 Department Top Three Salaries(各部门工资最高的三个人) 2、题目地址 https://leetcode.com/problems/department-top-three-salaries/ 3、题目内容 表Employee保存了所有雇员的数据,每名雇员都有一个Id,和一个部门Id(DepartmentId) +---+---+---+---+ |Id|Name|Salary|DepartmentId| +---+...
https://leetcode.com/problems/department-top-three-salaries/ 不愧是hard,特别费劲。 一开始想得很简单,就像一个循环一样,外层塞一个DepartmentId给内层,内层去找这个部门下的top3的,轻松愉快。 问题是MySQL不支持这语法Orz. 'This version of MySQL doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery...
For this problem, we can either identify the top earners first using DataFrame employee and then join the DataFrame department to get the department name, or join the DataFrame department first to get the department name before identifying the top earners. In this approach, we use the latter ...
top three salariesineachofthe department.Forthe above tables, yourSQLquery shouldreturnthe followingrows(orderofrowsdoesnotmatter).+---+---+---+|Department|Employee|Salary|+---+---+---+|IT|Max|90000||IT|Randy|85000||IT|Joe|85000||IT|Will|70000||Sales|Henry|80000||Sales|Sam|60000...
Write a SQL query to find employees who earn the top three salaries in each of the department. For the above tables, your SQL query should return the following rows. +---+---+---+ | Department | Employee | Salary | +---+---+---+ | IT | Max | 90000 | | IT | Randy | ...
| 1 | IT | | 2 | Sales | +---+---+ Write a SQL query to find employees who earn the top three salaries in each of the department. For the above tables, your SQL query should return the following rows. +---+---+---+ | Department | Employee | Salary | +---+...
http://bookshadow.com/weblog/2015/01/24/leetcode-department-top-three-salaries/ 原题: https://leetcode.com/problems/department-top-three-salaries/ 题目描述: The Employee table holds all employees. Every employee has an Id, and there is also a column for the department Id. +---+---+...
leetcode原文引用: How would you print just the 10th line of a file? For example, assume thatfile.txthas the following content: Line 1 Line 2 Line 3 Line 4 Line 5 Line 6 Line 7 Line 8 Line 9 Line 10 Your script should output the tenth line, which is: ...