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Find Employees with Maximum Salary in Each Department

SQLmedium0.3 min readPremium
Frequency
Low
Asked at 1 company
Category
487
questions in SQL
Difficulty Split
130E|271M|86H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
TCS
Key Concepts Tested
partitionwindow
Expert AnswerPremium
59 wordsInterview-ready
Window: SELECT * FROM (SELECT *, MAX(salary) OVER (PARTITION BY department) AS dept_max FROM employees) t WHERE salary = dept_max. Correlated subquery: WHERE salary = (SELECT MAX(salary) FROM employees WHERE department = e.department). **Why window**: Single table scan; correlated subquery can be O(n²). **Multiple max-per-dept**: Both return all employees tied for max....
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