Question

I’m working on a problem where I need to determine who the pitcher with the most wins is for each MLB team. I am using derby to do this.

Here is what I have…W is for wins

 SELECT one.teamID
 FROM Pitching one
 Where (one.W >= ALL
    (SELECT two.W
    FROM Pitching two
    Where (two.teamID = one.teamID) 
           AND (one.playerID < two.playerID)));

This doesn’t produce the correct results. Could someone instruct me on where I went wrong and what a better approach might be? Thank you.

Answer 1

Remove this line:

AND (one.playerID < two.playerID)

It accepts players with a higher ID but a lower win rate, which is probably not what you want.