Mysql can't get data of my parent in a subquery - mysql

Question

I've to do a query where the join can access to the data of is parent.
I had this :
SELECT *
FROM tbl_quart q
INNER JOIN tbl_poste_horaire ph ON ph.tbl_quart_id = q.id
INNER JOIN tbl_poste_horaire_caserne phc ON phc.tbl_poste_horaire_id = ph.id
INNER JOIN (
SELECT DISTINCT q1.id,
IF(q1.heureDebut>CURTIME(),ADDTIME(q1.heureDebut,'24:00:00'),
IF(q1.heureFin<CURTIME(),ADDTIME(q1.heureDebut,'48:00:00'),q1.heureDebut)) AS heureTri
FROM tbl_poste_horaire_caserne phc1
INNER JOIN tbl_poste_horaire ph1 ON ph1.id = phc1.tbl_poste_horaire_id
INNER JOIN tbl_quart q1 ON q1.id = ph1.tbl_quart_id
WHERE phc1.tbl_caserne_id = phc.tbl_caserne_id
ORDER BY phc1.tbl_caserne_id, heureTri
LIMIT 2
) AS quartValide ON quartValide.id = q.id
WHERE phc.tbl_caserne_id IN (1,9)
but this request give me that:
Error Code: 1054
Unknown column 'phc.tbl_caserne_id' in 'where clause'
the error is for this line :
WHERE phc1.tbl_caserne_id = phc.tbl_caserne_id
I had also try this :
SELECT *
FROM tbl_quart q
INNER JOIN tbl_poste_horaire ph ON ph.tbl_quart_id = q.id
INNER JOIN tbl_poste_horaire_caserne phc ON phc.tbl_poste_horaire_id = ph.id
WHERE phc.tbl_caserne_id IN (1,9) AND q.id IN ( SELECT DISTINCT q1.id,
IF(q1.heureDebut>CURTIME(),ADDTIME(q1.heureDebut,'24:00:00'),
IF(q1.heureFin<CURTIME(),ADDTIME(q1.heureDebut,'48:00:00'),q1.heureDebut)) AS heureTri
FROM tbl_poste_horaire_caserne phc1
INNER JOIN tbl_poste_horaire ph1 ON ph1.id = phc1.tbl_poste_horaire_id
INNER JOIN tbl_quart q1 ON q1.id = ph1.tbl_quart_id
WHERE phc1.tbl_caserne_id = phc.tbl_caserne_id
ORDER BY phc1.tbl_caserne_id, heureTri
LIMIT 2
)
And i had an error too:
Error Code: 1235
This version of MariaDB doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery'
Thanks you for your help :)

Answer 1

Try this way:
SELECT *
FROM tbl_quart q
INNER JOIN tbl_poste_horaire ph ON ph.tbl_quart_id = q.id
INNER JOIN tbl_poste_horaire_caserne phc ON phc.tbl_poste_horaire_id = ph.id
INNER JOIN (
SELECT DISTINCT q1.id,
phc1.tbl_caserne_id
IF(q1.heureDebut>CURTIME(),ADDTIME(q1.heureDebut,'24:00:00'),
IF(q1.heureFin<CURTIME(),ADDTIME(q1.heureDebut,'48:00:00'),q1.heureDebut)) AS heureTri
FROM tbl_poste_horaire_caserne phc1
INNER JOIN tbl_poste_horaire ph1 ON ph1.id = phc1.tbl_poste_horaire_id
INNER JOIN tbl_quart q1 ON q1.id = ph1.tbl_quart_id
ORDER BY phc1.tbl_caserne_id, heureTri
LIMIT 2
) AS quartValide
ON quartValide.id = q.id AND quartValide.tbl_caserne_id = phc.tbl_caserne_id
WHERE phc.tbl_caserne_id IN (1,9)
but it would be better to refactor this query... give me a minute, I think we can simplify it.
it looks like you overcomplecated the query a little. Try this one and tell me what is wrong with result?
SELECT DISTINCT q.*,
ph.*,
phc.*,
IF(q.heureDebut>CURTIME(),ADDTIME(q.heureDebut,'24:00:00'),
IF(q.heureFin<CURTIME(),ADDTIME(q.heureDebut,'48:00:00'),q.heureDebut)) AS heureTri
FROM tbl_poste_horaire_caserne phc
INNER JOIN tbl_poste_horaire ph
ON ph.id = phc.tbl_poste_horaire_id
INNER JOIN tbl_quart q
ON q.id = ph.tbl_quart_id
WHERE phc.tbl_caserne_id IN (1,9)
ORDER BY phc.tbl_caserne_id, heureTri
LIMIT 2