0
對不起,我知道在論壇上有很多關於這個問題的答案,但是我沒有成功調整我的問題的答案。如果語句在內部連接的sql查詢中
這裏是我的功能:
public function getPupil($db, $pupil_id){
$pupil = $db->query('
SELECT
a.gender as genderPupil,
pupil_name,
pupil_lastname,
a.id as pupilId,
b.id as idOne,
c.id as idTwo,
b.lastname as lastnameOne,
b.name as nameOne,
c.name as nameTwo,
c.lastname as lastnameTwo,
birthdate,
school,
level,
allergies,
special_diet,
tap,
d.name as tapNameFirstTerm,
e.name as tapNameSecondTerm,
f.name as tapNameThirdTerm
FROM pupils a
INNER JOIN responsibles b ON a.id_responsibles = b.id
INNER JOIN responsibles c ON a.id_responsibles_two = c.id
INNER JOIN tap_activities d ON a.tap_first_term = d.id
INNER JOIN tap_activities e ON a.tap_second_term = e.id
INNER JOIN tap_activities f ON a.tap_third_term = f.id
WHERE a.id = ?
', [$pupil_id])->fetch();
return $pupil;
}
我想補充的條件,不查詢INNER JOIN時a.tap_first_term或a.tap_second_term或a.tap_third_term等於0
非常感謝你的回答。
哪個內連接?你有幾個。另外,你確定這是它的去向嗎?您是針對FROM表中的列進行測試的?除非它依賴於其中一個JOIN表中的值,否則它將放在WHERE子句中。 –