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Interviewers ask this kind of question to surface how you think, not what you remember. The strongest answers are specific, calmly told, and end on what changed.

SQL · Window functions

From an employees table with employee_id, department_id, and salary, write a query using a window function that shows each employee alongside the average salary in their department.

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From an employees table with employee_id, department_id, and salary, write a query using a window function that shows each employee alongside the average salary in their department.

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