SQL Tuning Advisor on a specific SQL statement

Question

Hi all,
How can I used SQL Tuning Advisor in Oracle EM Database Control to tune a specific SQL statement; i.e. the statement is not any of: Top SQL, SQL Tuning Sets, Snapshots Preserved Snapshot Sets.
Thanks in advance,
Ahmed B.

Answer 1

Hi,
You can use either the automatic SQL tuning features that are accessible from Enterprise Manager Database Console on the "Advisor Central" page or trough SQL*PLUS using the DBMS_SQLTUNE pakage:
-- creating the tuning task
set serveroutput on
declare
  l_sql_tune_task_id  varchar2(100);
begin
  l_sql_tune_task_id := dbms_sqltune.create_tuning_task (
                          sql_id      => '<your_sql_id>',
                          scope       => dbms_sqltune.scope_comprehensive,
                          time_limit  => 60,
                          task_name   => '<your_tuning_task_name>',
                          description => 'tuning task for statement your_sql_id.');
  dbms_output.put_line('l_sql_tune_task_id: ' || l_sql_tune_task_id);
end;
-- executing the tuning task
exec dbms_sqltune.execute_tuning_task(task_name => '<your_tuning_task_name>');
-- displaying the recommendations
set long 100000;
set longchunksize 1000
set pagesize 10000
set linesize 100
select dbms_sqltune.report_tuning_task('<your_tuning_task_name>') as recommendations from dual;For more information, take a look at link provided by Jaffy.
Cheers
Legatti