📊 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄𝗲𝗿: How do you get the Employee Count by Department in SQL?

🙋‍♂️ 𝗠𝗲: Use GROUP BY to aggregate employees per department:

SELECT department_id, COUNT(*) AS employee_count
FROM employees
GROUP BY department_id;

🧠 Logic Breakdown:

COUNT(*) counts employees in each department

GROUP BY department_id groups rows by department


✅ Use Case: Department sizing, HR analytics, resource allocation

💡 Pro Tip: Add ORDER BY employee_count DESC to see the largest departments first.

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