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Write a SQL query to calculate the highest salary in each department using a window function

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

Key Concepts Tested

partition sql window

Expert AnswerPremium

56 wordsInterview-ready

SELECT department_id, employee_id, salary, MAX(salary) OVER (PARTITION BY department_id) AS max_salary FROM employees. Or with RANK: SELECT * FROM (SELECT *, RANK() OVER (PARTITION BY department_id ORDER BY salary DESC) r FROM employees) WHERE r = 1. **Why window**: Avoid correlated subquery; single pass....

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