How can i get the error message from the thrown/raised exception?

Question

DB version:10gR2
Examples for this thread taken from
Want Stored Procs to get exectuted regardless of preceeding SPs Success or
I have a package with several functions and procedures inside.I created a caller procedure called callProcs, which will execute various procedures within the package in the appropriate order.
In the below example i cannot get the error message thrown from line 20
create or replace package body mypackage
is
variable_proc1 number;
variable_proc2 number;
variable_proc3 number;
v_result       number;
my_exception   exception;
procedure proc1
is
begin
select 8/0 into variable_proc1 from dual;
exception
          when others
          then raise my_exception; ----line 20
end;
procedure proc2
is
begin
select 1 into variable_proc2 from dual;
exception
          when others
          then
               null;
end;
procedure proc3
is
begin
select 3 into variable_proc3 from dual;
exception
          when others
          then
               null;
end;
Procedure caller_proc
is
begin
proc1;
proc2;
proc3;
v_result:=variable_proc2+variable_proc3;
dbms_output.put_line('The output is '||v_result);
exception
          when my_exception
          then
dbms_output.put_line('Heyyyyy the error is '||SQLERRM); -- exception caught at line 64 of caller proc
end;
end mypackage;
When i try executing the caller proc, i don't get the error. Instead i get the text User-Defined Exception as shown below
set serveroutput on
exec mypackage.caller_proc;
Heyyyyy the error is User-Defined Exception
PL/SQL procedure successfully completed.Edited by: user10633418 on Mar 10, 2009 11:30 PM

Answer 1

Thank you justin.
Sorry my earlier post was a bit ambiguous.
I wanted the error generated at proc1 to be captured at caller proc's Exception handling section (line 64) so that i could log the error to an ERR_LOG table.
I can actually log this error at proc1 itself like
exception
when others
THEN
error_message :='My custom message for the particular proc '||SQLERRM;
dbms_output.put_line(error_message);
logerror(error_message); --an autonomous error logging proc
raise;But there is a RAISE statement in proc1's exception handling, so the exception gets propogated to caller proc's exception handling section {color:#ff0000}*and another redundant row will be created at ERR_LOG table for the same error because there is a*{color}
logerror(error_message);--an autonomous error logging proc
in the WHEN OTHERS section of exception handling section of the caller proc
I want to avoid the creation of this redundant row in ERR_LOG table.