Question

I have three tables here, that I’m trying to do a tricky combined query on.

Table 1(teams) has Teams in it:

id     name
------------
150    LA Lakers
151    Boston Celtics
152    NY Knicks

Table 2(scores) has scores in it:

id  teamid   week    score
---------------------------
1     150     5        75
2     151     5        95
3     152     5        112

Table 3(tickets) has tickets in it

id    teamids    week
---------------------
1   150,152,154   5   
2   151,154,155   5    

I have two queries that I’m trying to write
Rather than trying to sum these each time i query the tickets, I’ve added a weekly_score field to the ticket. The idea being, any time a new score is entered for the team, I could take that teams id, get all tickets that have that team / week combo, and update them all based on the sum of their team scores.

I’ve tried the following to get the results i’m looking for (before I try and update them):

SELECT t.id, t.teamids, (
  SELECT SUM( s1.score ) 
  FROM scores s1
  WHERE s1.teamid
   IN (
    t.teamids
   )
 AND s1.week =11
) AS score
FROM tickets t
WHERE t.week =11
AND (t.teamids LIKE  "150,%" OR t.teamids LIKE  "%,150")

Not only is the query slow, but it also seems to not return the sum of the scores, it just returns the first score in the list.

Any help is greatly appreciated.

Answer 1

If you are going to match, you’ll need to accommodate for the column only having one team id. Also, you’ll need to LIKE in your SELECT sub query.

SELECT t.id, t.teamids, (
  SELECT SUM( s1.score ) 
  FROM scores s1
  WHERE 
    (s1.teamid LIKE t.teamids 
        OR CONCAT("%,",s1.teamid, "%") LIKE t.teamids 
        OR CONCAT("%",s1.teamid, ",%") LIKE t.teamids
    )
    AND s1.week =11
) AS score
FROM tickets t 
WHERE t.week =11
AND (t.teamids LIKE  "150,%" OR t.teamids LIKE  "%,150" OR t.teamids LIKE "150")