Thanks for your reply I have solved my problem but stilll this was the entire request !!

declare @region varchar(1200);

declare @academie varchar(1200);

declare @categorie_personnel varchar(1200);

declare @typologie varchar(1200);

declare @type_etablissement varchar (1200);

declare @zone_geo...

Thank you very much for your reply I'm going to test this right now !

thanks again Bastien