🚀 Nth Highest Salary SQL Interview Question Explained
In this video, we solve one of the most frequently asked SQL interview questions — finding the Nth highest salary from an Employees table.
We cover:
- How to use DENSE_RANK() correctly
- Why ROW_NUMBER() and RANK() can give wrong results
- Handling duplicate salaries (real interview scenario)
- Step-by-step explanation with examples
💡 This is a must-know problem for:
- Data Engineers
- Data Analysts
- SQL Developers
🔗 GitHub Solution:
https://github.com/mahesh-cr-de/sql-interview-q-and-a/blob/main/Nth%20Highest%20Salary.md
🧠 Key Takeaways:
- Always clarify if "Nth highest" means distinct values
- DENSE_RANK() is the safest approach
- Window functions are critical for SQL interviews
🔥 If you're preparing for SQL interviews, this question is guaranteed to come up.
#SQL #SQLInterview #DataEngineering #MySQL #SQLServer #WindowFunctions
