Cannot insert Third column of data - oracle

Question

I am noob in PL/SQL I just start learning and I want to create small peace of software that insert data from .CVS file to Oracle database.
And I stuck in part where I grab data from .CVS file.
I my CVS there are three column: Number_Policy,Contact, Agency
Number_Policy,Contact is catch success, but Agency can not be catched and I dont know why
declare
import_file text_io.file_type;
export_file text_io.file_type;
import_file_name varchar2(1000);
export_file_name varchar2(1000);
import_log_file text_io.file_type;
import_log_file_name varchar2(1000);
vec_importovano number;
brojac number;
brojac_redova number;
linebuf varchar2(10000);
p_rbr varchar2(20);
p_polica varchar2(20);
p_banka VARCHAR2(50);
p_kontakt varchar2(20);
kraj_fajla number;
begin
brojac_redova:=0;
import_file_name := :Global.Lokacija_prenosa||:import.naziv_fajla||:Global.Ekstenzija_prenosa;
import_file := text_io.fopen(import_file_name,'r');
delete from zivot_trajni_nalog_ponude where banka is not null;
commit;
kraj_fajla := 0;
while kraj_fajla = 0 loop
begin
brojac_redova:=brojac_redova+1;
text_io.get_line(import_file, linebuf);
if brojac_redova >= 2 then
p_polica:=substr(linebuf, 1, instr(linebuf,';',1,1)-1);
-- message(p_polica);
p_kontakt:=substr(linebuf, instr(linebuf,';',1,1)+1, instr(linebuf,';',1,2) - instr(linebuf,';',1,1)-1);
p_banka:=substr(linebuf, instr(linebuf,';',1,2)+1, instr(linebuf,';',1,3) - instr(linebuf,';',1,2)-1);
-- message(p_banka);
--p_kontakt:=substr(linebuf, instr(linebuf,';',1,1)+1, instr(linebuf,';',1,2) - instr(linebuf,';',1,1)-1);
-- message(p_kontakt);
/*
p_rbr:=substr(linebuf, 1, instr(linebuf,';',1,1)-1);
-- message(p_rbr);
p_polica:=substr(linebuf, instr(linebuf,';',1,1)+1, instr(linebuf,';',1,2) - instr(linebuf,';',1,1)-1);
-- message(p_polica);
p_banka:=substr(linebuf, instr(linebuf,';',1,2)+1, instr(linebuf,';',1,3) - instr(linebuf,';',1,2)-1);
message(p_banka);
p_kontakt:=substr(linebuf, instr(linebuf,';',1,3)+1, instr(linebuf,';',1,4) - instr(linebuf,';',1,3)-1);
message(p_kontakt);
*/
if vec_importovano = 0 then
insert into ZIVOT_TRAJNI_NALOG_PONUDE
(BROJ_POLICE,BROJ_PONUDE)
values(
p_polica,
--p_rbr,
p_kontakt);
-- p_banka);
commit;
end if;
end if;
EXCEPTION WHEN NO_DATA_FOUND THEN kraj_fajla := 1;
end;
end loop;
IF p_polica IS NOT NULL
THEN
update zivot_trajni_nalog_ponude set BROJ_POLICE=rownum;
commit;
END IF;
text_io.fclose(import_file);
message ('Uspjesno zavrseno');
end;
As you can see from code there is error somewhere here
p_banka:=substr(linebuf, instr(linebuf,';',1,2)+1, instr(linebuf,';',1,3) - instr(linebuf,';',1,2)-1);
-- message(p_banka);
After I disable this column the problem is that column p_polica and p_kontakt can't be inserted into database.
If anyone know where I made mistake I would be very thankful for any help.

Answer 1

Looks like linebuf has only two semicolons. This piece of code worked in my short test:
if instr(linebuf,';',1,3) > 0 then
p_banka := substr(linebuf,
instr(linebuf,';',1, 2) + 1,
instr(linebuf,';',1,3) - instr(linebuf,';',1,2)-1);
else
p_banka := substr(linebuf,
instr(linebuf,';',1, 2) + 1);
end if;