-- Creation du SQL baseline à partir d'un plan dans le library cache
-- et injection dans un sql_text spécifique

-- Dans l'exemple suivant, nous créons un SQL Baseline pour le SQL ayant le texte du SQL_ID=81qv4d7vkb571, 
-- à partir d'un plan dans le library cache: SQL_ID=chhkmc32mdkak, PLAN_HASH_VALUE=2494645258


set serveroutput ON
declare    
  sqltext_without_hint clob;    
  ret pls_integer;    
begin    
  select SQL_FULLTEXT into sqltext_without_hint from V$SQL where sql_id = '81qv4d7vkb571' and CHILD_NUMBER=0;
  ret  :=    
  DBMS_SPM.LOAD_PLANS_FROM_CURSOR_CACHE(
    SQL_ID =>'chhkmc32mdkak',    
    PLAN_HASH_VALUE => 2494645258,    
    SQL_TEXT => sqltext_without_hint);    
  dbms_output.put_line(ret || ' SQL plan baseline(s) created');
end;    
/


-- Liste des SQL baseslines, par contre, il n'y a pas le plan_id
-----------------------------------------------------------------
set lines 180 pages 999

col created for a20 trunc
col signature for 9999999999999999999

select signature, sql_handle, plan_name, enabled, accepted, fixed, origin,created 
from   dba_sql_plan_baselines;


-- Pour avoir le plan_id
------------------------
SELECT TO_CHAR(so.signature) signature
  ,      so.plan_id
  ,      DECODE(ad.origin, 1, 'MANUAL-LOAD',
                        2, 'AUTO-CAPTURE',
                        3, 'MANUAL-SQLTUNE',
                        4, 'AUTO-SQLTUNE',
                        5, 'STORED-OUTLINE',
                           'UNKNOWN') origin
  ,      DECODE(BITAND(so.flags, 1), 1, 'YES', 'NO') enabled
  ,      DECODE(BITAND(so.flags, 2), 2, 'YES', 'NO') accepted
  ,      DECODE(BITAND(so.flags, 64), 64, 'NO', 'YES') reproduced
  FROM   sys.sqlobj$        so
  ,      sys.sqlobj$auxdata ad
  WHERE  ad.signature = so.signature
    AND    ad.plan_id   = so.plan_id
    AND    so.signature = 9005682359107037619;


-- Pour avoir le OUTLINE du plan_id
-----------------------------------
select cast(extractvalue(value(x), '/hint') as varchar2(500)) as outline_hints 
    from   xmltable('/outline_data/hint' 
           passing (select xmltype(comp_data) xml 
                    from   sys.sqlobj$data 
                    where  signature = 9005682359107037619
                    and    plan_id   = 263533726)) x;  

                    
-- Drop d'un SQL baseline
-------------------------
set serveroutput ON
DECLARE
  v_dropped_plans number;
BEGIN
  v_dropped_plans := DBMS_SPM.DROP_SQL_PLAN_BASELINE (
     sql_handle => 'SQL_7cfa9c643693a9b3',
     plan_name=>'SQL_PLAN_7tynwchv97admdbd90e8e'
);
  DBMS_OUTPUT.PUT_LINE('dropped ' || v_dropped_plans || ' plans');
END;
/