Exclude ORA-06512 from error message

Question

Hi all,
Lets have a simple example:
declare
EXP_FRZN_VER EXCEPTION;
begin
if (1=1) then
raise EXP_FRZN_VER;
end if;
exception
when EXP_FRZN_VER then
raise_application_error (-20303, 'Frozen version cannot be modified!');
when OTHERS then
dbms_output.put_line('TEST');
end;
I want to send error message to my web application through raise_application_error.
Error message looks like:
Error report:
ORA-20303: Frozen version cannot be modified!
ORA-06512: at line 12
Question: Is there a way to exclude string "ORA-06512: at line 12" from that message? I need to handle it on DB side...
Thanks
Finec

Answer 1

Your calling code shouldn't get that line as you haven't passed back the error stack in your raise_application_error...
e.g.
SQL> ed
Wrote file afiedt.buf
  1  declare
  2    EXP_FRZN_VER EXCEPTION;
  3    v_err varchar2(200);
  4    procedure x is
  5    begin
  6      if (1=1) then
  7        raise EXP_FRZN_VER;
  8      end if;
  9    exception
10      when EXP_FRZN_VER then
11        raise_application_error (-20303, 'Frozen version cannot be modified!');
12    end;
13  begin
14    x;
15  exception
16    when others then
17      v_err := SQLERRM;
18      dbms_output.put_line('Error Message received is actually: '||v_err);
19* end;
SQL> /
Error Message received is actually: ORA-20303: Frozen version cannot be modified!
PL/SQL procedure successfully completed.If you did pass back the whole stack, then you'd get the whole thing...
SQL> ed
Wrote file afiedt.buf
  1  declare
  2    EXP_FRZN_VER EXCEPTION;
  3    v_err varchar2(200);
  4    procedure x is
  5    begin
  6      if (1=1) then
  7        raise EXP_FRZN_VER;
  8      end if;
  9    exception
10      when EXP_FRZN_VER then
11        raise_application_error (-20303, 'Frozen version cannot be modified!', true); -- pass back whole error stack
12    end;
13  begin
14    x;
15  exception
16    when others then
17      v_err := SQLERRM;
18      dbms_output.put_line('Error Message received is actually: '||v_err);
19* end;
SQL> /
Error Message received is actually: ORA-20303: Frozen version cannot be modified!
ORA-06512: at line 11
ORA-06510: PL/SQL: unhandled user-defined exception
PL/SQL procedure successfully completed.