sum multiple columns of same table in mysql - php

Question

I am working on developing sports site.
In this site I've two tables one is tbl_team which stores the team details and another table is tbl_tournamentmatches which stores the details of different rounds of tournament matches.
In my tbl_tournamentmatches I'm storing team1_id, team2_id, team1_score and team2_score.
My Table having entry like this:
tbl_tournamentmatches
match_id team1_id team2_id team1_score team2_score
5 4 9 15 5
6 9 16 15 5
7 4 16 5 15
8 4 16 5 15
tbl_team
team_id team_title
4 KKR
9 RR
16 CSK
I want Result Should look like this:-
Team name Score
CSK 35
KKR 25
RR 20
I'd used this query :-
select * from
(
SELECT sum(team1_points) as totalpoints,t.team_title
from tbl_team t
left join tbl_tournamentmatches m
on t.team_id = m.team1_id
where tournament_id = 3 AND agegroup_id = 36
group by team1_id
union
SELECT sum(team2_points) as totalpoints,t.team_title
from tbl_team t
left join tbl_tournamentmatches m
on t.team_id = m.team2_id
where tournament_id = 3 AND agegroup_id = 36
group by team2_id
) s
But i got result like this :-
KKR 25
RR 15
RR 5
CSK 35
Any Help will be appreciated. Thanks in advance.

Answer 1

Do the joins to get the team and points for each match, and then do the sum on the results of that:-
SELECT team_title, sum(team_points) as totalpoints
FROM
(
SELECT team1_id AS team_id, team1_points AS team_points, t.team_title
FROM tbl_team t
LEFT JOIN tbl_tournamentmatches m
ON t.team_id = m.team1_id
WHERE tournament_id = 3 AND agegroup_id = 36
UNION ALL
SELECT team2_id AS team_id, team2_points AS team_points, t.team_title
FROM tbl_team t
LEFT JOIN tbl_tournamentmatches m
ON t.team_id = m.team2_id
WHERE tournament_id = 3 AND agegroup_id = 36
) s
GROUP BY team_id, team_title

Answer 2

try this query
SELECT t.team_name
,SUM(CASE
WHEN t.team_id = tn.team1_id THEN tn.team1_score
WHEN t.team_id = tn.team2_id THEN tn.team2_score
END) AS score
FROM team t
LEFT JOIN tournament tn ON t.team_id = tn.team1_id OR t.team_id = team2_id
GROUP BY t.team_name

Answer 3

You almost got it.
In your query I see fields that you don't include in your table (e.g. agegroup_id), but you only are a step of a solution: change your outter "select * from " for a: "select sum(totalpoints), team_title" and add a group by at the end: "group by team_title"
select sum(totalpoints) as totalpoints, team_title from
(
SELECT sum(team1_score) as totalpoints, t.team_title
from tbl_team t
join tbl_tournamentmatches m
on t.team_id = m.team1_id
--where tournament_id = 3 AND agegroup_id = 36
group by team1_id
union
SELECT sum(team2_score) as totalpoints, t.team_title
from tbl_team t
join tbl_tournamentmatches m
on t.team_id = m.team2_id
--where tournament_id = 3 AND agegroup_id = 36
group by team2_id
) s
group by team_title;

Answer 4

Use Union all to make all team and score as different rows.
Then use an Inner Join.
Query
select t2.team_title as TeamName,
sum(team_score) as Score
from
(
select match_id,team1_id as team_id, team1_score as team_score
from tblMatch
union all
select match_id,team2_id as team_id, team2_score as team_score
from tblMatch
)t1
join tblTeam t2
on t1.team_id = t2.team_id
group by t2.team_id;
SQL Fiddle