🧠 SQL Interview Question (Self Join + Salary Comparison)
📌

employees(emp_id, manager_id, salary)

❓ Ques :

👉 Find employees whose salary is higher than their manager’s salary.

🧩 How Interviewers Expect You to Think

• Understand hierarchical relationships 👥
• Use self join on same table
• Compare values across related rows
• Handle NULL manager cases

💡 SQL Solution

SELECT
e.emp_id,
e.salary AS emp_salary,
m.salary AS manager_salary
FROM employees e
JOIN employees m
ON e.manager_id = m.emp_id
WHERE e.salary > m.salary;

🔥 Why This Question Is Powerful

• Tests self join concept deeply 🧠
• Real-world scenario in org hierarchy analysis
• Checks ability to compare across rows
• Frequently asked in interviews

❤️ React if you want more real interview-level SQL questions 🚀