SQL Solution For LeetCode Problem: Second highest salary
Solving Second highest salary in SQL. This is also a classic interview question. Please try yourself first to solve the problem and submit your implementation to LeetCode before looking into solution.
Problem Description
Write a SQL query to get the second highest salary from the Employee table.
+----+--------+ | Id | Salary | +----+--------+ | 1 | 100 | | 2 | 200 | | 3 | 300 | +----+--------+
For example, given the above Employee table, the query should return 200 as the second highest salary. If there is no second highest salary, then the query should return null.
+---------------------+ | SecondHighestSalary | +---------------------+ | 200 | +---------------------+
Originally posted at: @github.com/ignacio-chiazzo/Algorithms-Leetcode-Javascript
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