The "v" reference need to exist in the inner query. You can't use an "outer query reference" in the inner query.
This happens because the inner query is executed before the outer query and the inner query doesn't even know about the outer query.
May be this helps you get what you want.
SELECT *, count(pl.id) * 1.5 AS nb_heures
FROM sip_vacations_v v
LEFT JOIN
(
mat_grp_v mg
INNER JOIN planification_v pl ON pl.mat_grp_id = mg.id
INNER JOIN planification_ens_v pe ON pe.planification_id = pl.id
WHERE mg.annee_univ = v.annee and mg.semestre = v.sem_civ
GROUP BY pe.emp_id, mg.mat_id, mg.groupe
) p
ON p.emp_id = v.emp_id AND p.mat_id = v.mat_id AND p.groupe = v.groupe;I not sure about the count(pl.id) * 1.5 is the same that you are looking for because it will depend of what you ate looking for.
Regards
On Thu, Oct 30, 2008 at 10:17 AM, Pascal Tufenkji
<ptufenkji@usj.edu.lb> wrote:
Hello,
I don't understand the following error.
Can anyone help me plz
Thx
Pascal
select *
from sip_vacations_v v
left join
(
select pe.emp_id,mg.mat_id,mg.groupe,count(p.id) * 1.5 as nb_heures
from mat_grp_v mg
inner join planification_v p on p.mat_grp_id = mg.id
inner join planification_ens_v pe on pe.planification_id = p.id
where mg.annee_univ = v.annee and mg.semestre = v.sem_civ
group by pe.emp_id,mg.mat_id,mg.groupe
) p on p.emp_id = v.emp_id
and p.mat_id = v.mat_id
and p.groupe = v.groupe
ERROR: invalid reference to FROM-clause entry for table "v"
LINE 9: where mg.annee_univ = v.annee and mg.semestre = v.sem_civ
^
HINT: There is an entry for table "v", but it cannot be referenced from this part of the query.
--
Helio Campos Mello de Andrade
