The Employee table holds all employees. Every employee has an Id, a salary, and there is also a column for the department Id. The Department ...
TheEmployeetable holds all employees. Every employee has an Id, and there is also a column for the department Id. TheDepartmenttable holds all departments of the company. Write a SQL query to find em ...
2016-04-08 13:21 0 4741 推荐指数:
The Employee table holds all employees. Every employee has an Id, a salary, and there is also a column for the department Id. The Department ...
(1)第二高薪水 编写一个 SQL 查询,获取 Employee 表中第二高的薪水(Salary) 例如上述 Employee 表,SQL查询应该返回 200 作为第二高的薪水。如果不存在第二高的薪水,那么查询应返回 null。 刚一看题目,觉得很简单的,可是做了一下之后才发现 ...
Write a SQL query to get the nth highest salary from the Employee table. For example, given th ...
Write a SQL query to get the second highest salary from the Employee table. For example, given ...
Employee 表包含所有员工信息,每个员工有其对应的工号 Id,姓名 Name,工资 Salary 和部门编号 DepartmentId 。 Department 表包含公司所有部门的信息。 编写一个 SQL 查询,找出每个部门获得前三高工资的所有员工 ...
编写一个 SQL 查询,获取 Employee 表中第 n 高的薪水(Salary)。 +----+--------+| Id | Salary |+----+--------+| 1 | 100 || 2 | 200 || 3 | 300 |+----+--------+ 例如上述 ...
Given a non-empty list of words, return the k most frequent elements. Your answer should be ...
题目: 编写一个SQL查询以获得Employee表中第二高的薪水。 例如,给定上面的Employee表,查询应该返回200为第二高薪水。如果没有第二高的薪水,那么查询应该返回null。 难点: limit、offset 见文章 返回null(使用临时表/IFFULL ...