text: USE `stockmalin`;
  
  DELETE FROM `achat` WHERE 1;
  DELETE FROM `article` WHERE 1;
  DELETE FROM `client` WHERE 1;
  DELETE FROM `collection` WHERE 1;
  DELETE FROM `debug` WHERE 1;
  DELETE FROM `fournisseur` WHERE 1;
  DELETE FROM `lien_achat` WHERE 1;
  DELETE FROM `lien_client` WHERE 1;
  DELETE FROM `lien_vente` WHERE 1;
  DELETE FROM `type_collection` WHERE 1;
  DELETE FROM `vente` WHERE 1;
  