SELECT reponse_texte,sujet_id,sujet_titre,studentd.forum_sujet.id_user,studentd.forum_sujet.date_derniere_reponse AS date,studentd.forum_sujet.id_dernier_user AS user_id, visite, table_1.login AS auteur, forum_nom_fr as forum_nom, cat_nom_fr as cat_nom,forum_nom_url
FROM studentd.forum_sujet

LEFT JOIN utilisateurs.user as table_1 ON (table_1.id=studentd.forum_sujet.id_user)
LEFT JOIN studentd.forum_reponse ON (id_sujet=sujet_id)
LEFT JOIN studentd.forum_forum ON (studentd.forum_sujet.id_forum=studentd.forum_forum.forum_id )
LEFT JOIN studentd.forum_categorie ON (cat_id=id_cat)
WHERE studentd.forum_forum.view=0
GROUP BY sujet_titre
ORDER BY studentd.forum_reponse.reponse_date DESC

SELECT command denied to user 'studentd'@'localhost' for table 'user'

Dans la fonction :