concatenate query result in a string - php

Question

I am getting a db result as 3 rows (Please see image link below).
The sql statement used is
select tevmkt.ev_mkt_id, tevmkt.name, tevmkt.ev_id, tevoc.ev_oc_id,
tevoc.desc, tevoc.fb_result, tevoc.lp_num, tevoc.lp_den,
tev.start_time
from tevmkt, tev,tevoc
where tevmkt.name = '|Match Result|' and tev.ev_id=tevmkt.ev_id and
tevoc.ev_mkt_id=tevmkt.ev_mkt_id and tev.start_time>=Today;
I will like to use php to concatenate each of the 3 rows into string or maybe use SQL statement.
So, the first 3 rows will display as ;
632274|Match Result||Draw||Aldershot Town||Arsenal FC|
And the next 3 rows
637799|Match Result||Draw||Southend United||Oxford United|

Answer 1

You can use concat
Sample base on your query
select CONCAT(tevmkt.ev_mkt_id, tevmkt.name, tevmkt.ev_id, tevoc.ev_oc_id,
tevoc.desc, tevoc.fb_result, tevoc.lp_num, tevoc.lp_den,
tev.start_time)
from tevmkt, tev,tevoc
where tevmkt.name = '|Match Result|' and tev.ev_id=tevmkt.ev_id and
tevoc.ev_mkt_id=tevmkt.ev_mkt_id and tev.start_time>=Today;

Answer 2

For what I see your model looks something like this:
CREATE TABLE tevmkt(
ev_mkt_id INT,
ev_id INT,
name CHAR(25)
);
CREATE TABLE tev(
ev_id INT,
start_time DATETIME YEAR TO SECOND
);
CREATE TABLE tevoc(
ev_mkt_id INT,
desc CHAR(25),
fb_result CHAR(1),
lp_num SMALLINT,
lp_den SMALLINT
);
You join tevmkt with tev by ev_id in a 1-to-1 relation.
You filter the records on tevmkt using the name field and the records on tev using the start_time field.
Now, you join the tevmkt with the tevoc by ev_mkt_id in a one to many relation, for what I see 1-to-3.
Your goal is to have a 1-to-1 also. Looking at you example I see three rows for each event and I conclude that they are:
1 row for home team, where fb_result is H;
1 row for away team, where fb_result is A;
1 row for result, I'm not sure on this one so I will handle it with care;
If this is the case, you can get your result set straigth using the next joins and filters:
SELECT
tevmkt.ev_mkt_id,
tevmkt.name,
(
TRIM(tevoc_result.desc) ||
TRIM(tevoc_away.desc) ||
TRIM(tevoc_home.desc)
) AS desc
FROM tevmkt
JOIN tev ON
tev.ev_id = tevmkt.ev_id
JOIN tevoc tevoc_result ON
tevoc_result.ev_mkt_id = tevmkt.ev_mkt_id
JOIN tevoc tevoc_away ON
tevoc_away.ev_mkt_id = tevmkt.ev_mkt_id
JOIN tevoc tevoc_home ON
tevoc_home.ev_mkt_id = tevmkt.ev_mkt_id
WHERE
tevmkt.name = '|Match Result|'
AND tev.start_time >= TODAY
AND tevoc_result.fb_result NOT IN ('H', 'A')
AND tevoc_away.fb_result = 'A'
AND tevoc_home.fb_result = 'H'
;