Problème de nom de bdd a priori, je suis mal réveillé.

if (mysql_num_rows($requete2) <2)
{

$requete2 = mysql_query('
SELECT cat_id, cat_nom, 
forum_forum.forum_id, forum_name, forum_desc, forum_post, forum_topic, auth_view, forum_topic.topic_id,  forum_topic.topic_post, post_id, post_time, post_createur, membre_pseudo, 
membre_id 
FROM forum_categorie
LEFT JOIN forum_forum ON forum_categorie.cat_id = forum_forum.forum_cat_id
LEFT JOIN forum_post ON forum_post.post_id = forum_forum.forum_last_post_id
LEFT JOIN forum_topic ON forum_topic.topic_id = forum_post.topic_id
LEFT JOIN forum_membres ON forum_membres.membre_id = forum_post.post_createur
WHERE auth_view < '.$level.' 
ORDER BY cat_ordre, forum_ordre DESC');

[b]Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in C:\wamp\www\forum\forum.php on line 85[/b]

la lignes 85

[php]if (mysql_num_rows($requete2) <2)
{[/php]


je vois pas de problème, j'ai suivi un tuto du site du zero. Il s'agit d'un forum.

la variable :
[php]$requete2 = mysql_query('
SELECT cat_id, cat_nom,
forum_forum.forum_id, forum_name, forum_desc, forum_post, forum_topic, auth_view, forum_topic.topic_id, forum_topic.topic_post, post_id, post_time, post_createur, membre_pseudo,
membre_id
FROM forum_categorie
LEFT JOIN forum_forum ON forum_categorie.cat_id = forum_forum.forum_cat_id
LEFT JOIN forum_post ON forum_post.post_id = forum_forum.forum_last_post_id
LEFT JOIN forum_topic ON forum_topic.topic_id = forum_post.topic_id
LEFT JOIN forum_membres ON forum_membres.membre_id = forum_post.post_createur
WHERE auth_view < '.$level.'
ORDER BY cat_ordre, forum_ordre DESC');[/php]