Question

I have three different tables in my MySQL database.

table users: (id, score, name)
table teams: (id, title)
table team_Members: (team_id, user_id)

What I would like to do is to have 1 query that finds every team ID a given user ID is member of, along with the following information:

1. total number of members in that team
2. the name of the team
3. users rank within the team (based on score)

EDIT:

Desired output should look like this;

TITLE (of the group)      NUM_MEMBERS       RANK
------------------------------------------------
Foo bar team              5                 2
Another great group       34                17
.
.
.

The query should be based on the users ID.

Help is greatly appreciated

Answer 1

I think this query should get what you ask for

select t.id, t.title, count(m.user_id) members, (
    select count(1)
    from users u3 
    inner join team_Members m3 on u3.id = m3.user_id 
    and m3.team_id = t.id and u3.score > (
        select score from users where name = 'Johan'
    )
) + 1 score
from teams t
inner join team_Members m on t.id = m.team_id
where t.id in (
    select team_id 
    from team_Members m2
    inner join users u2 on m2.user_id = u2.id
    where u2.name = 'Johan'
)
group by t.id, t.title