Select many rows separately in oracle form tabular forms

Select many rows separately in oracle form tabular forms save    -- save btn when-button-pressed trigger

if :BILL.code is not null then
begin
    IF :SYSTEM.cursor_block <> 'BILL' THEN
        GO_BLOCK('BILL');
    END IF;
    FIRST_record;
    loop
        IF :BILL.st in ('1','2','3')  THEN
    --    loop
    insert into BILL_INFO(DATE,TRCOD,:ST)
        values(:BILL.DATE,:BILL.TRCOD,:BILL.ST);       

    --    end loop;
        END IF;
        if :System.Last_Record = 'TRUE' THEN
            exit;
        end if;
        NEXT_RECORD;
        SYNCHRONIZE;
    end loop;
    COMMIT;
end;
end if;
FIRST_RECORD;
commit_form;
clear_form;