declare
    object_exists exception;
    pragma exception_init (object_exists , -01430);
begin
	execute immediate 'ALTER TABLE PUNTO_VENTA add  INDBLOQUEACANCTROCAPASSNORMAL number(1)';
	execute immediate 'ALTER TABLE PUNTO_VENTA add  INDBLOQUEACANCTROCAPTA number(1)';
	exception when object_exists then null;
end;