Skip to content

Mock 2 Interview #13

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
SukeshSrinivas wants to merge 1 commit into
base: main
Choose a base branch
from
Open

Mock 2 Interview #13

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
21 changes: 21 additions & 0 deletions Mock2InteviewTournamentWinners.sql
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,21 @@
# Write your MySQL query statement below
WITH Playersinfo AS (
SELECT match_id, first_player AS player_id, first_score AS score FROM matches
UNION ALL
SELECT match_id, second_player AS player_id, second_score AS score FROm matches
),
PlayerGroup AS (
SELECT playersinfo.player_id, group_id, SUM(score) AS TotalScores
FROM Playersinfo
LEFT JOIN Players
ON Playersinfo.player_id = players.player_id
GROUP BY player_id, group_id
),
GroupRank AS (
SELECT player_id, group_id, DENSE_RANK() OVER (PARTITION BY group_id ORDER BY TotalScores DESC, player_id) AS GroupRanks
FROM PlayerGroup
)

SELECT group_id, player_id FROM GroupRank
WHERE GroupRanks = 1