What is wrong in the below block. Just trying to update after the fetch

Question

set serveroutput on;
declare
begin
for i in (
select c1.part_number,c1.serial_number from components c1
where aircraft_code in ( select aircraft_code
from aircraft_header_2 ah2 where ah2.current_aircraft_indicator <> 'Y' and
trim(aircraft_code) is not null)) loop
update components set fit_details_a = ' ' and fit_details_b = ' '
where trim(part_number) = i.part_number and trim(serial_number) = i.serial_number;
delete from aircraft_build  where part_number = i.part_number and serial_number = i.serial_number and trim(aircraft_code) is not null;
END LOOP;
end;
Error report:
ORA-06550: line 9, column 43:
PL/SQL: ORA-00933: SQL command not properly ended
ORA-06550: line 9, column 1:
PL/SQL: SQL Statement ignored
06550. 00000 -  "line %s, column %s:\n%s"
*Cause:    Usually a PL/SQL compilation error.
*Action:

Answer 1

Please, replace
update components set fit_details_a = ' ' and fit_details_b = ' '
by other this
update components set fit_details_a = ' ', fit_details_b = ' '
the and is incorret, you must use comma.
HTH - Antonio NAVARRO