Question

I am building a polling system and I have a query right now that is supposed to select all of the polls and count all of the votes for each of the polls (which lie in a separate table). So my tables look like:

Polls:  
ID  
Title  
Body

Votes:  
ID  
PollID  
Vote  (This value is either 0 or 1)

Well the totaling of the votes looks like it is working, the issue is that it is currently only displaying one record.

Currently my query looks like this:

SELECT POLLS.ID, 
       POLLS.TITLE, 
       POLLS.BODY, 
       Sum(CASE 
             WHEN VOTES.VOTE = 1 
                  AND VOTES.POLLID = POLLS.ID THEN 1 
             ELSE 0 
           END) AS yay, 
       Sum(CASE 
             WHEN VOTES.VOTE = 0 
                  AND VOTES.POLLID = POLLS.ID THEN 1 
             ELSE 0 
           END) AS nay, 
       FROM     polls, 
       VOTES 
ORDER  BY POLLS.ID 

Also I am using PHP with Codeigniter.

Answer 1

SELECT polls.ID,polls.title,polls.body,
  SUM(case when votes.vote = 1 then 1 else 0 end) AS yay,
  SUM(case when votes.vote = 0 then 1 else 0 end) AS nay,
FROM polls 
JOIN votes ON polls.ID = votes.pollID
  GROUP BY poll.ID, polls.title, polls.body
  ORDER BY polls.ID