What kind of join do I need?

Question

I have a votes table:

 votes
-----------------
 userid   gameid
-------  --------
   a        1
   a        2
   a        3
   b        1
   b        2
         


        

Answer 1

You would use an INNER join to establish the relationship between the common gameid field;

select
  votes.userid,
  games.title
from games
  inner join votes on (votes.gameid = game.gameid)
where
  votes.userid = 'a'