Je suis au niveau 3 avec periods4
Je dois chercher General dans period_fr
Cherchons le type de period_fr
requête : SELECT t.typcategory
FROM pg_attribute a
JOIN pg_type t ON t.oid = a.atttypid
JOIN pg_class c ON c.oid = a.attrelid
JOIN pg_namespace n ON n.oid = c.relnamespace
WHERE c.relname = 'periods'
AND a.attname = 'period_fr'
AND a.attnum > 0
AND n.nspname = 'public'period_fr vaut : S
Je dois chercher General dans period_en
Cherchons le type de period_en
requête : SELECT t.typcategory
FROM pg_attribute a
JOIN pg_type t ON t.oid = a.atttypid
JOIN pg_class c ON c.oid = a.attrelid
JOIN pg_namespace n ON n.oid = c.relnamespace
WHERE c.relname = 'periods'
AND a.attname = 'period_en'
AND a.attnum > 0
AND n.nspname = 'public'period_en vaut : S
Erreur SQL lim :
ERROR: invalid reference to FROM-clause entry for table "periods"
LINE 1: ...e) AND ( TRUE AND TRUE AND TRUE AND TRUE AND (((periods.pe...
^
HINT: Perhaps you meant to reference the table alias "periods4".