Can this be done with a subquery? - mysql

Question

I have a table looking like this:
Team Name Points
A Peter 26
A John 18
A Carl 20
A Robert 32
A Mike 10
B Tom 22
B Michael 28
B Tina 18
B Donald 35
B Jeff 20
I want to get a result from the query that will give me the best 3 users from a team and the SUM of the point from the 3 highest users.
For team A the 3 highest scores are Robert (32), Peter (26) and (Carl (20) which is a total of 78 points.
For team B the highest 3 scores are Donald (35), Michael (28) and Tom (22) which is a total of 85 points
So it must be something like this:
Place Team Points
1 B 85
2 A 78
I have tried something like this:
SELECT points, user FROM table ORDER BY points DESC, LIMIT 3
That will give me the 3 users with the highest points but I want also the SUM of these 3 users and these records must be per team.
I think it must be done with a subquery, is this correct?

Answer 1

SELECT team,SUM(points) sp FROM
(
(
SELECT * FROM `table` WHERE team = "A" ORDER BY points DESC LIMIT 3
)
UNION ALL
(
SELECT * FROM `table` WHERE team = "B" ORDER BY points DESC LIMIT 3
)
)
AS dbx
GROUP BY team
ORDER BY sp DESC
Explaination:
Your Data:
Get Highest 3 from both Team (A and B).
And then, sum After join them All.
Result: