2375. HR: Find employees whose salary is outside their department's salary range. — Python + FastAPI + SQLAlchemy

DBMS Published 30 Sept 2026 Updated 30 Sept 2026 0 Views Verified

In a hr module, solve this as a production problem using Python + FastAPI + SQLAlchemy: Find employees whose salary is outside their department's salary range. Provide the SQL, explain the logic, show safe application integration, and mention failure/edge cases.

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Answer & Explanation

4 Answers

Verified

Option A

SELECT * FROM table_name;

Additional Explanation

Incorrect: it does not satisfy the stated business rule and can return/change unintended data.

Verified Correct Answer

Option B

SELECT e.* FROM employees e JOIN (SELECT dept_id,MIN(salary) min_salary,MAX(salary) max_salary FROM employees GROUP BY dept_id) r ON r.dept_id=e.dept_id WHERE e.salaryr.max_salary;

Additional Explanation

In a clean table the condition should return no rows; it can be adapted to compare against policy bands instead.

Verified

Option C

DELETE FROM table_name;

Additional Explanation

Incorrect: it does not satisfy the stated business rule and can return/change unintended data.

Verified

Option D

UPDATE table_name SET status='active';

Additional Explanation

Incorrect: it does not satisfy the stated business rule and can return/change unintended data.