Impossible d'éxécuter la requête

			(
				
				SELECT Art.Id_Article , Art.Multi_Diffusion, Art.Date, Art.Article, Art.Id_Club , Art.id_last_contribution
				
				FROM articles Art 
				
				WHERE (Art.Id_Club = 99 OR Art.Multi_Diffusion = 1 OR Art.Multi_Diffusion = 105 )
				
				AND Art.Categorie = 
				AND (Art.Date >= '2010-06-30'  AND Art.Date < '2011-12-30')
				
			)
			UNION 
			(
				
				SELECT Art.Id_Article , Art.Multi_Diffusion, Art.Date, Art.Article, Art.Id_Club , Art.id_last_contribution  
				
				FROM groupements Gro, enfants Enf, articles Art  
				
				WHERE 
				(
					(
					Art.Id_Club = Enf.Id_Objet  
					AND Gro.Id_Parent = 99
					AND Art.Multi_Diffusion_Groupement =1
					AND Gro.Id_Type =1 
					AND Gro.Id_Groupement = Enf.Id_Groupement 
					)
				) 
				AND Art.Categorie = 
				AND (Art.Date >= '2010-06-30'  AND Art.Date < '2011-12-30')
				
			)
			UNION 
			(
				
				SELECT Art.Id_Article , Art.Multi_Diffusion, Art.Date, Art.Article, Art.Id_Club , Art.id_last_contribution  
				
				FROM groupements Gro, enfants Enf, articles Art  
				
				WHERE 
				(
					(
					Art.Id_Club = Gro.Id_Parent
					AND Enf.Id_Objet = 99
					AND Art.Multi_Diffusion_Groupement =1
					AND Gro.Id_Type IN (1,2)  
					AND Gro.Id_Groupement = Enf.Id_Groupement 
					)	
				) 
				AND Art.Categorie = 
				AND (Art.Date >= '2010-06-30'  AND Art.Date < '2011-12-30')
				
			)		
			ORDER BY  Date DESC , Id_Article DESC
			LIMIT 13

Erreur MySQL: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'AND (Art.Date >= '2010-06-30' AND Art.Date < '2011-12-30') ) UNIO' at line 10Le serveur de 64matchschrono est indisponible... Merci de réitérer votre requête (toucheF5).
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