What is an SQL Window Function? A window is a set of rows or observations in a table or result set. In a table, you may have more than one window depending on how you specify the query.

Example: SELECT id, score, RANK() OVER (PARTITION BY department ORDER BY score DESC) AS rank_within_department FROM employee_scores; Window functions in SQL, unlike aggregate functions ...

ROW_NUMBER () OVER(PARTITION BY gender ORDER BY salary DESC) AS row_num, RANK () OVER(PARTITION BY gender ORDER BY salary DESC) AS rank_num, DENSE_RANK () OVER(PARTITION BY gender ORDER BY salary DESC ...

ROW_NUMBER() OVER(PARTITION BY gender ORDER BY salary DESC) AS row_num, RANK() OVER(PARTITION BY gender ORDER BY salary DESC) rank_num, DENSE_RANK() OVER(PARTITION BY gender ORDER BY salary DESC) ...