Project Notes

Nth Highest Salary

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Description

tab: English
 
<p>Table: <code>Employee</code></p>
 
<pre>
+-------------+------+
| Column Name | Type |
+-------------+------+
| id          | int  |
| salary      | int  |
+-------------+------+
id is the primary key (column with unique values) for this table.
Each row of this table contains information about the salary of an employee.
</pre>
 
<p>&nbsp;</p>
 
<p>Write a solution to find the <code>n<sup>th</sup></code> highest <strong>distinct</strong> salary from the <code>Employee</code> table. If there are less than <code>n</code> distinct salaries, return&nbsp;<code>null</code>.</p>
 
<p>The result format is in the following example.</p>
 
<p>&nbsp;</p>
<p><strong class="example">Example 1:</strong></p>
 
<pre>
<strong>Input:</strong> 
Employee table:
+----+--------+
| id | salary |
+----+--------+
| 1  | 100    |
| 2  | 200    |
| 3  | 300    |
+----+--------+
n = 2
<strong>Output:</strong> 
+------------------------+
| getNthHighestSalary(2) |
+------------------------+
| 200                    |
+------------------------+
</pre>
 
<p><strong class="example">Example 2:</strong></p>
 
<pre>
<strong>Input:</strong> 
Employee table:
+----+--------+
| id | salary |
+----+--------+
| 1  | 100    |
+----+--------+
n = 2
<strong>Output:</strong> 
+------------------------+
| getNthHighestSalary(2) |
+------------------------+
| null                   |
+------------------------+
</pre>
 
 
 
---
 
[submissions](https://leetcode.com/problems/nth-highest-salary/submissions/) | [solutions](https://leetcode.com/problems/nth-highest-salary/solutions/)
 
 
tab: 中文
 
<p>表:&nbsp;<code>Employee</code></p>
 
<pre>
+-------------+------+
| Column Name | Type |
+-------------+------+
| id          | int  |
| salary      | int  |
+-------------+------+
id 是该表的主键（列中的值互不相同）。
该表的每一行都包含有关员工工资的信息。
</pre>
 
<p>&nbsp;</p>
 
<p>编写一个解决方案查询&nbsp;<code>Employee</code> 表中第 <code>n</code> 高的&nbsp;<strong>不同</strong> 工资。如果少于&nbsp;<code>n</code> 个不同工资，查询结果应该为&nbsp;<code>null</code> 。</p>
 
<p>查询结果格式如下所示。</p>
 
<p>&nbsp;</p>
 
<p><strong>示例 1:</strong></p>
 
<pre>
<strong>输入:</strong> 
Employee table:
+----+--------+
| id | salary |
+----+--------+
| 1  | 100    |
| 2  | 200    |
| 3  | 300    |
+----+--------+
n = 2
<strong>输出:</strong> 
+------------------------+
| getNthHighestSalary(2) |
+------------------------+
| 200                    |
+------------------------+
</pre>
 
<p><strong>示例 2:</strong></p>
 
<pre>
<strong>输入:</strong> 
Employee 表:
+----+--------+
| id | salary |
+----+--------+
| 1  | 100    |
+----+--------+
n = 2
<strong>输出:</strong> 
+------------------------+
| getNthHighestSalary(2) |
+------------------------+
| null                   |
+------------------------+</pre>
 
 
 
---
 
[提交记录](https://leetcode.cn/problems/nth-highest-salary/submissions/) | [题解](https://leetcode.cn/problems/nth-highest-salary/solution/)

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