Building a report with a text based on table rows

Question

Hello!
I have in my database a table named "Support_Request" and another table named "Request_Advance", the first one have a brief description of each support request problem and some information related, the second one have each participation of technicians and customers in the resolution of the case (i.e a knowledge base about the request)....
Well, i want to take each advance related to a support_request and concat them in a unique text to show this information in a report, how i do that?....
acctually iam trying without results with a before report trigger with the following code:
function BeforeReport return boolean is
     advance_report request_advance.advance%type;
cursor cur is
select advance from request_advance
where id_caso=:id_caso;
begin
open cur;
loop
fetch cur into advance_report;
:TOTAL_ADVANCE:=:TOTAL_ADVANCE || advance_report || '********';
exit when cur%NOTFOUND;
end loop;
return (TRUE);
end;
please can somebody help me? :$

Answer 1

Thanks Claudine, i do the following function (spanish version) and works:
CREATE OR REPLACE FUNCTION Avance_Total(caso IN soportebwv2.avance_caso.id_caso%type) RETURN VARCHAR2
IS
     avance_total VARCHAR2(15000);
     avance_reporte soportebwv2.avance_caso.avance%TYPE;
     CURSOR cur IS
     SELECT avance FROM avance_caso
     WHERE id_caso=caso;     
BEGIN
     OPEN cur;
LOOP
     FETCH cur INTO avance_reporte;
     avance_total:= avance_total || avance_reporte || '*************************************';
     EXIT WHEN cur%NOTFOUND;
END LOOP;
CLOSE cur;
RETURN avance_total;
END;
SHOW ERRORS;
but my advance appear repeating several times, you have any idea why?
Beatriz