Update 176. Second Highest Salary.SQL

Author: iamAntimPal

LeetCode SQL 50 Solution/176. Second Highest Salary.SQL

@@ -54,4 +54,13 @@ Output:
 | SecondHighestSalary |
 +---------------------+
 | null                |
-+---------------------+ 
++---------------------+ 
+
+WITH
+  RankedEmployees AS (
+    SELECT *, DENSE_RANK() OVER(ORDER BY salary DESC) AS `rank`
+    FROM Employee
+  )
+SELECT MAX(salary) AS SecondHighestSalary
+FROM RankedEmployees
+WHERE `rank` = 2;