176. Second Highest Salary

Write a SQL query to get the second highest salary from theEmployeetable.

+----+--------+
| Id | Salary |
+----+--------+
| 1  | 100    |
| 2  | 200    |
| 3  | 300    |
+----+--------+

For example, given the above Employee table, the query should return200as the second highest salary. If there is no second highest salary, then the query should returnnull.

+---------------------+
| SecondHighestSalary |
+---------------------+
| 200                 |
+---------------------+

# Write your MySQL query statement below
SELECT max(Salary) as SecondHighestSalary
FROM Employee
WHERE Salary < (SELECT max(Salary) FROM Employee)