ORA-06502 trying to load a long raw into a variable.

Question

Hi. In my table "banco_imagem" the bim_src column is a long raw type.
I´m using oracle forms 6 (not 6i), so I can´t use blob type to save my images.
Now I´m trying to load the long raw column into a variable in a package that runs on 10g.
I´m trying to execute de folowing code at sql plus:
declare
wbim   long raw;
begin
select bim_src into wbim from banco_imagem where rownum=1;
end;
The column is not null. It has a value.
I got the folowing error:
ORA-06502: PL/SQL: numeric or value error
ORA-06512: at line 4
My goal is to load this column to convert it to blob so I can manipulate with my others (already running) functions.
Can anyone help me?
Thanks!

Answer 1

Hi Mcardia,
not sure where you're going wrong, but perhaps if you compare what you've done up to now to the following code snippet, you may figure it out eventually!
SQL> drop table test_raw
  2  /
Table dropped.
SQL>
SQL> create table test_raw (col_a long raw, col_b blob)
  2  /
Table created.
SQL> set serveroutput on
SQL> declare
  2 
  3    l1 long raw;
  4    l2 long raw;
  5   
  6    b1 blob;
  7   
  8  begin
  9 
10    l1:= utl_raw.cast_to_raw('This is a test');
11   
12    insert into test_raw (col_a) values (l1);
13 
14       
15    select col_a
16    into   l2
17    from    test_raw
18    where   rownum < 2;
19   
20    dbms_lob.createtemporary (b1, false);
21   
22    dbms_output.put_line(utl_raw.cast_to_varchar2(l2));
23    b1 := l2;
24 
25    update  test_raw set col_b = b1;
26   
27    commit;
28   
29    dbms_output.put_line('Done ');
30   
31    exception
32      when others then
33        dbms_output.put_line('Error ' || sqlerrm);
34  end;
35  /
This is a test
Done
PL/SQL procedure successfully completed.Bear in mind that I'm running on the following:
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Release 10.2.0.4.0 - Production
CORE 10.2.0.4.0 Production
TNS for Solaris: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production