Window Frame EXCLUDE

Window Frame EXCLUDE is a SQL function in the Window Functions category. SQL standard: EXCLUDE removes specific rows from the window frame. Not supported in all databases. The syntax is ... ROWS BETWEEN ... EXCLUDE CURRENT ROW / EXCLUDE TIES / EXCLUDE GROUP / EXCLUDE NO OTHERS. It accepts see syntax. It returns exclusion-based window result. A typical example: SELECT name, salary, SUM(salary) OVER ( ORDER BY salary ROWS BETWEEN 2 PRECEDING AND 2 FOLLOWING EXCLUDE CURRENT ROW ) AS sum_without_self, SUM(salary) OVER ( ORDER BY salary GROUPS BETWEEN 1 PRECEDING AND 1 FOLLOWING EXCLUDE TIES ) AS sum_excluding_ties FROM employees; -- EXCLUDE CURRENT ROW: removes the current row from frame -- EXCLUDE TIES: removes rows with same ORDER BY value -- EXCLUDE GROUP: removes all rows in current… A close relative is ROW_NUMBER(), which assigns a unique sequential integer to each row within its partition (1, 2, 3...).