create or replace procedure
update_aircraft (a_code in varchar2    , a_number in varchar2,
                 a_fircode in varchar2 , a_firclass in number,
                 a_execode in varchar2 , a_execlass in number,
                 a_ecocode in varchar2 , a_ecoclass in number) as
begin
   update aircraft 
   set acr_number = a_number,
       fir_code = a_fircode, fir_class = a_firclass,
       exe_code = a_execode, exe_class = a_execlass,
       eco_code = a_ecocode, eco_class = a_ecoclass
   where acr_code = a_code;
   commit;
end;
/