refactor 1308

Author: fishercoder1534

Diff for: database/_1308.sql

@@ -1,69 +1,4 @@
---1308. Running Total for Different Genders
---
---Table: Scores
---
---+---------------+---------+
---| Column Name   | Type    |
---+---------------+---------+
---| player_name   | varchar |
---| gender        | varchar |
---| day           | date    |
---| score_points  | int     |
---+---------------+---------+
---(gender, day) is the primary key for this table.
---A competition is held between females team and males team.
---Each row of this table indicates that a player_name and with gender has scored score_point in someday.
---Gender is 'F' if the player is in females team and 'M' if the player is in males team.
---
---
---Write an SQL query to find the total score for each gender at each day.
---
---Order the result table by gender and day
---
---The query result format is in the following example:
---
---Scores table:
---+-------------+--------+------------+--------------+
---| player_name | gender | day        | score_points |
---+-------------+--------+------------+--------------+
---| Aron        | F      | 2020-01-01 | 17           |
---| Alice       | F      | 2020-01-07 | 23           |
---| Bajrang     | M      | 2020-01-07 | 7            |
---| Khali       | M      | 2019-12-25 | 11           |
---| Slaman      | M      | 2019-12-30 | 13           |
---| Joe         | M      | 2019-12-31 | 3            |
---| Jose        | M      | 2019-12-18 | 2            |
---| Priya       | F      | 2019-12-31 | 23           |
---| Priyanka    | F      | 2019-12-30 | 17           |
---+-------------+--------+------------+--------------+
---Result table:
---+--------+------------+-------+
---| gender | day        | total |
---+--------+------------+-------+
---| F      | 2019-12-30 | 17    |
---| F      | 2019-12-31 | 40    |
---| F      | 2020-01-01 | 57    |
---| F      | 2020-01-07 | 80    |
---| M      | 2019-12-18 | 2     |
---| M      | 2019-12-25 | 13    |
---| M      | 2019-12-30 | 26    |
---| M      | 2019-12-31 | 29    |
---| M      | 2020-01-07 | 36    |
---+--------+------------+-------+
---For females team:
---First day is 2019-12-30, Priyanka scored 17 points and the total score for the team is 17.
---Second day is 2019-12-31, Priya scored 23 points and the total score for the team is 40.
---Third day is 2020-01-01, Aron scored 17 points and the total score for the team is 57.
---Fourth day is 2020-01-07, Alice scored 23 points and the total score for the team is 80.
---For males team:
---First day is 2019-12-18, Jose scored 2 points and the total score for the team is 2.
---Second day is 2019-12-25, Khali scored 11 points and the total score for the team is 13.
---Third day is 2019-12-30, Slaman scored 13 points and the total score for the team is 26.
---Fourth day is 2019-12-31, Joe scored 3 points and the total score for the team is 29.
---Fifth day is 2020-01-07, Bajrang scored 7 points and the total score for the team is 36.
-
---# Write your MySQL query statement below
 select s1.gender, s1.day, sum(s2.score_points) as total from Scores s1, Scores s2
 where s1.gender = s2.gender and s1.day >= s2.day
 group by s1.gender, s1.day
-order by s1.gender, s1.day
+order by s1.gender, s1.day