How to find third or nᵗʰ maximum salary from salary table?

Question

How to find third or n^th maximum salary from salary table(EmpID, EmpName, EmpSalary) in optimized way?

Answer 1

SELECT EmpSalary 
FROM salary_table 
GROUP BY EmpSalary 
ORDER BY EmpSalary DESC LIMIT n-1, 1;