Procedure and triggers

Hi all,
Please anybody clarify my doubt.
I am very new to Performance Tunning .Could You Please explain me.
what is the process of tunning Stored Procedures and Database triggers
by using tunning tools and also in normal way.
rampa.

Hmmm.. So... which one is correct? 9i or 10G?Hmmm... Let's test it:
--==============================================--
set feed off
select banner from v$version where rownum = 1;
create table tmp as select 1 as i from dual;
prompt
prompt No trigger:
update tmp set i = i + 1;
set autot trace stat
set autot off
prompt Before trigger:
create trigger tmp$trg before update on tmp for each row
begin
  if :new.i is null then null; end if;
end;
update tmp set i = i + 1;
set autot trace stat
set autot off
prompt After trigger:
create or replace trigger tmp$trg after update on tmp for each row
begin
  if :new.i is null then null; end if;
end;
update tmp set i = i + 1;
set autot trace stat
set autot off
--==============================================--
BANNER
Oracle9i Enterprise Edition Release 9.2.0.8.0 - Production
No trigger:
Statistics
          0  recursive calls
          1  db block gets
          3  consistent gets
          0  physical reads
        244  redo size
        632  bytes sent via SQL*Net to client
        777  bytes received via SQL*Net from client
          4  SQL*Net roundtrips to/from client
          1  sorts (memory)
          0  sorts (disk)
          1  rows processed
Before trigger:
Statistics
          0  recursive calls
          2 db block gets
          3  consistent gets
          0  physical reads
        244  redo size
        632  bytes sent via SQL*Net to client
        777  bytes received via SQL*Net from client
          4  SQL*Net roundtrips to/from client
          1  sorts (memory)
          0  sorts (disk)
          1  rows processed
After trigger:
Statistics
          0  recursive calls
          1 db block gets
          3  consistent gets
          0  physical reads
        244  redo size
        632  bytes sent via SQL*Net to client
        777  bytes received via SQL*Net from client
          4  SQL*Net roundtrips to/from client
          1  sorts (memory)
          0  sorts (disk)
          1  rows processed
--==============================================--
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Prod
No trigger:
Statistics
          0  recursive calls
          1  db block gets
          3  consistent gets
          0  physical reads
          0  redo size
        904  bytes sent via SQL*Net to client
        929  bytes received via SQL*Net from client
          4  SQL*Net roundtrips to/from client
          1  sorts (memory)
          0  sorts (disk)
          1  rows processed
Before trigger:
Statistics
          0  recursive calls
          2 db block gets
          9  consistent gets
          0  physical reads
          0  redo size
       1771  bytes sent via SQL*Net to client
       1128  bytes received via SQL*Net from client
          6  SQL*Net roundtrips to/from client
          1  sorts (memory)
          0  sorts (disk)
          1  rows processed
After trigger:
Statistics
          0  recursive calls
          1 db block gets
          9  consistent gets
          0  physical reads
          0  redo size
       1771  bytes sent via SQL*Net to client
       1128  bytes received via SQL*Net from client
          6  SQL*Net roundtrips to/from client
          1  sorts (memory)
          0  sorts (disk)
          1  rows processed
--==============================================--
At first glance 10g documentation is wrong.
The same with the trigger accessing :old values.

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    Hi,
    I have one database. This database is with 7 schemas. Around 1000 triggers are associated with each schema. But the application is using only some triggers.
    How to find out the used triggers? Apllications is developed in J2EE.
    Same way I want to find out the for Packages/Procedures and Functions.
    Any easy way is available?
    Please help me.
    regards
    Mathew

    Hi,
    >Audit the execution event on the objects by access.
    Kindly explain how to enable this auditing.
    regards
    Mathew

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