Last updated on March 10th, 2025 at 11:14 pm

Here, we see the Second Highest Salary LeetCode Solution. This Leetcode problem is solved using MySQL and Pandas.

List of all LeetCode Solution

Level of Question

Medium

Second Highest Salary LeetCode Solution

1. Problem Statement

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.

Write a solution to find the second-highest salary from the Employee table. If there is no second-highest salary, return null (return None in Pandas).

The result format is in the following example.

Example 1:
Input:

id	salary
1	100
2	200
3	300

Output:

SecondHighestSalary

200

Example 2:
Input:

id	salary
1	100

Output:

SecondHighestSalary

null

2. Code Implementation in Different Languages

2.1 Second Highest Salary MySQL

select 
  FirstName, 
  LastName, 
  City, 
  State 
from 
  Person as p 
  left join Address as a on p.PersonId = a.PersonId;