SELECT statement to choose the columns gender, day, and the calculated total score.SUM() function as a window function over the score_points column.gender to calculate the total separately for each gender.day to ensure the scores are summed in chronological order.OVER() clause to define the window specification.gender and day in ascending order.
erDiagram
Scores {
varchar player_name
varchar gender
date day
int score_points
gender_day PK gender day
}