Procedure which returns value

Question

Well! Simply I want, to write procedure which will insert or updates (is dependent from ID if ID <=0 then there is an insert otherwise updating) the information of the Student, and returns it's ID....... how I can write procedure like this???
is this procedure correct ???
create or replace procedure sp_InsertUpdate_T_STUDENT
nResID out NUMBER,
nID in NUMBER,
vchNAME in VARCHAR2,
vchSURNAME in VARCHAR2,
nAGE in NUMBER,
nCNAUTHORID in NUMBER
as
begin
if nID<=0 then
insert into T_STUDENT (NAME,SURNAME,AGE,CNAUTHORID) values (vchNAME,vchSURNAME,nAGE,nCNAUTHORID );
else
update T_STUDENT set NAME=vchNAME,SURNAME=vchSURNAME,AGE=nAGE,CNAUTHORID=nCNAUTHORID
where ID=nID;
end if;
select ID into nResID from T_STUDENT where NAME=vchNAME and
SURNAME=vchSURNAME and AGE=nAGE and CNAUTHORID=nCNAUTHORID;
end;

Answer 1

is this procedure correct ???Does it work?
You might change the insert logic so that it uses a RETURNING clause to set nResID as part of the insert, instead of doing it later.