Help about concurrency in procedure

Question

create or replace
procedure Cau_1
(ngayBatDau date,
ngayKetThuc date,
hinhThucNganSach tonghopngansach.loaingansach%type,
iDChiPhi chiphi.id%type)
as
begin
set transaction isolation level serializable;
cursor iDchiPhi_cursor is (select idchiphi from tonghopngansach where tungay >= ngaybatdau and denngay <= ngayketthuc);
tongSoTien tonghopngansach.sotien%type;
iDChiPhitemp tonghopngansach.idchiphi%type;
soTien1ID float:=0;
begin
open idChiPhi_cursor;
fetch idChiPhi_cursor into idchiphitemp;
if idchiphi is not null then
while iDchiPhi_cursor%found
loop
if idchiphi=idchiphitemp then
select sotien
into soTien1id
from tonghopngansach
where idchiphi=idchiphitemp;
tongSoTien:=tongSoTien+soTien1id;     
end if;
if Error != 0 then
begin
     rollback;
end if;     
fetch idChiPhi_cursor into idchiphitemp;
end loop;
insert into tonghopngansach(idchiphi,tungay,denngay,sotien,loaingansach)
values(idchiphi,ngaybatdau,ngayketthuc,tongSoTien,hinhthucngansach);
end if;
if idchiphi is null then
while iDchiPhi_cursor%found
loop
select sotien
into soTien1id
from tonghopngansach
where idchiphi=idchiphitemp;
tongSoTien:=tongSoTien+soTien1id;
if Error != 0 then
*     begin*
     rollback;
*     end if;*          
fetch idChiPhi_cursor into idchiphitemp;
end loop;
end if;
insert into tonghopngansach(idchiphi,tungay,denngay,sotien,loaingansach)
values ('Tong Hop',ngaybatdau,ngayketthuc,tongSoTien,hinhthucngansach);
end;
comit;
when I run in sqldeveloper, it's error. I don't know where is error. please help me. Thanks
Edited by: [email protected] on 13:41 01-06-2010
Edited by: [email protected] on 13:42 01-06-2010

Answer 1

Can you take about 27 steps backwards and explain WHY you think you need to set your transaction isolation level?
This isn't something typically required ... i won't say it's never required, but i've seen nothing in your post to suggest
1) you know what you are doing with it
2) that is is actually a requirement for what you are attempting to do.
Oracle is NOT SQLServer, they are quite dissimilar in many respects. If you can explain what you need to do (from a business perspective, a user need if you will) then we will be in a much better position to explain to you how to implement your logic in ORACLE.
This becomes infinitely easier if you provide
1) the objects you are working with (DDL / CREATE TABLE statements)
2) the data you have in the objects you are working with (INSERT statements to populate the objects in #1)
3) the desired results
4) an explanation of the process that produces the desired results
5) your Oracle version
select * from v$version;And finally, format your code and use the tags around it to preserve the formatting so other can read it without having an aneurysm. 
I see you are new to the forum, so reading the FAQ wouldn't be a bad thing for you to do.
http://wiki.oracle.com/page/Oracle+Discussion+Forums+FAQ