Return multiple values from an Oracle function - oracle

Question

I need to return several varchar variables from an Oracle function but when it returns something the function exits immediately. Is there any way I can do this?
Here I return the first value that matches the condition but I want to return all of them.
create or replace function f_pilotosContinentes return varchar as
cursor cc(codigoPiloto int) is
select count(*) as numero from(
select distinct pi.codigo, c.nome from Voo v
join Rota r on r.codigo = v.rota
join Aeroporto a on a.codigo = r.localDestino
join Pais p on p.codigo = a.pais
join Continente c on c.codigo = p.continente
join PilotoVoo pv on pv.voo = v.codigo
join Piloto pi on pi.codigo = pv.piloto
where pi.codigo = codigoPiloto);
pilotos cc%rowtype;
cursor cc1 is
select p.codigo from Piloto p;
codPilotos cc1%rowtype;
duracao int;
temp int;
piloto varchar(20);
begin
duracao := 0;
open cc1;
loop
fetch cc1 into codPilotos;
exit when cc1%notfound;
--Verificar para cada piloto
open cc(codPilotos.codigo);
loop
fetch cc into pilotos;
exit when cc%notfound;
if pilotos.numero between 3 and 4 then
--Buscar a duração total dos voos dele
select sum(v.duracao) into temp from Voo v
join PilotoVoo pv on pv.voo = v.codigo
join Piloto p on p.codigo = pv.piloto
where p.codigo = codPilotos.codigo;
if temp > duracao or duracao = 0 then
duracao := temp;
end if;
end if;
end loop;
close cc;
end loop;
close cc1;
open cc1;
loop
fetch cc1 into codPilotos;
exit when cc1%notfound;
--Verificar para cada piloto
open cc(codPilotos.codigo);
loop
fetch cc into pilotos;
exit when cc%notfound;
if pilotos.numero >= 3 then
--Buscar a duração total dos voos dele
select sum(v.duracao) into temp from Voo v
join PilotoVoo pv on pv.voo = v.codigo
join Piloto p on p.codigo = pv.piloto
where p.codigo = codPilotos.codigo;
if temp = duracao then
select p.nome into piloto from Piloto p
where p.codigo = codPilotos.codigo;
return piloto;
end if;
end if;
end loop;
close cc;
end loop;
close cc1;
dbms_output.put_line('Nenhum piloto viajou para todos os continentes.');
return null;
end;

Answer 1

There are a number of ways you can return multiple strings from a PL/SQL method:
Populate and return a VARCHAR2 array instead of a single VARCHAR2
Use a procedure instead with multiple OUT parameters (suitable if there are a fixed number of return values you want to return, especially if they have different meanings - e.g. name, address, state, etc.)
Use a view instead. This would require transforming the procedural logic from your function into SQL predicates.
Side note: if the function is changed to return an array, you can then if you wish change it to a pipelined function, which would mean that if you call it from a SQL query, it will begin consuming rows as soon as the function returns them, instead of waiting for the function to finish. This may help with performance (both speed and memory usage).