Question

Ok lets say I’m making a social networks like twitter.
I have a table called social where it gets or where we put our social thing.

example me ( uid = 1 )
friend1 ( uid = 2 )
friend2 ( uid = 3 )

The table

SID AUID BUID
1   1    2
2   1    3
3   2    1

The information that we get here is

user id 1(me) is following 2
user id 1(me) is following 3
user id 2 is following 1(me)

And the question is: Can we do something like the two queries below in one single query ?

function CountFollowers($uid){
    $count = $this->fetch("SELECT COUNT(BUID) as followers
                                   FROM social WHERE BUID = :uid", 
    array( 'uid' => $uid));
    return $count;
}

and

function CountFollowing($uid){
    $count = $this->fetch("SELECT COUNT(AUID) as following
                                   FROM social WHERE AUID = :uid", 
    array( 'uid' => $uid));
    return $arrayofdata;
}

Thanks for looking in

Answer 1

This gets you two columns with the count of following and followers

SELECT (SELECT COUNT(BUID) as count FROM social WHERE BUID = :uid) as Followers
  , (SELECT COUNT(AUID) as count FROM social WHERE AUID = :uid) as Following