Get max paired users scores with min time sums - mysql

Question

I have MySQL tables that look like this
users
user_id | partner_id | name
--------+------------+-----
1 | 2 | aaa
2 | 1 | bbb
3 | 4 | ccc
4 | 3 | ddd
games
game_id | user_id
--------+--------
1 | 1
2 | 1
3 | 2
4 | 3
5 | 4
6 | 4
scores
game_id | level | score | time
--------+-------+-------+-----
1 | 1 | 1 | 10
1 | 2 | 1 | 10
1 | 3 | 1 | 10
2 | 1 | 0 | 20
2 | 2 | 0 | 20
2 | 3 | 0 | 20
3 | 1 | 1 | 30
3 | 2 | 1 | 30
3 | 3 | 1 | 30
4 | 1 | 1 | 2
4 | 2 | 1 | 2
4 | 3 | 1 | 2
5 | 1 | 1 | 5
5 | 2 | 1 | 5
5 | 3 | 1 | 5
6 | 1 | 1 | 3
6 | 2 | 1 | 3
6 | 3 | 0 | 3
And i need to query it so it sums points and time per game, so it looks like this
game_id | user_id | sumPoints | sumTime
--------+---------+-----------+--------
1 | 1 | 3 | 30
2 | 1 | 0 | 60
3 | 2 | 3 | 90
4 | 3 | 3 | 6
5 | 4 | 3 | 15
6 | 4 | 2 | 9
And then i need to get best scores per pair (where it takes better score of one user), so it looks like this:
user1_id | user2_id | sumPoints | sumTime
---------+----------+-----------+--------
3 | 4 | 3 | 6
1 | 2 | 3 | 30
That's the final result. I'd really appreciate if someone could show me how it should looks like as sql query.
I'd like to mention that first part is solved by JW 웃 in this post
Thanks in advance.

Answer 1

Something like this should work (this answers your second query)
SELECT
user_details.user_id,
user_details.partner_id,
score_details.score,
score_details.time
FROM
( SELECT
min(user_id) as user_id,
max(user_id) as partner_id
FROM
users
GROUP BY
user_id + partner_id ) AS user_details
JOIN
( SELECT
scores.game_id ,
games.user_id,
sum(score) score,
sum(time) time,
#row_num := IF(#prev_value=games.user_id,#row_num+1,1) AS row_num,
#prev_value := games.user_id
FROM
scores
inner join games on games.game_id = scores.game_id
inner join users on users.user_id = games.user_id
GROUP BY
scores.game_id
ORDER BY
user_id,
score
) as score_details ON ( score_details.user_id = user_details.user_id AND score_details.row_num = 1)
The first part of JOIN gets the users along with their partners, users appearing first within their pair are displayed first, eg: if there are 2 users with ID 1 and 2 I consider the user_id of user 1 as he appears first within his pair.
The second query is based on "echo_me" answer along with a row_number that specifies the ranking of the scores for each user, the highest score has the rank as 1 for every user.
SQLFIDDLE
Hope this is helpful

Answer 2

try this
select scores.game_id ,games.user_id,sum(score) score, sum(time) time
from scores
inner join games
on games.game_id = scores.game_id
inner join users
on users.user_id = games.user_id
group by scores.game_id
DEMO HERE
for the best score
select users.user_id as user1_id,users.partner_id as user2_id,sum(score) score, sum(time) time
from scores
inner join games
on games.game_id = scores.game_id
inner join users
on users.user_id = games.user_id
group by scores.game_id
order by sum(time) asc limit 1
DEMO HERE
OUTPUT.
USER1_ID USER2_ID SCORE TIME
1 2 3 30