====SQL Baseline - SPM - SQL Plan Management====


<note>In Arbeit</note>


===Die vorhandenen Baselines anzeigen===

<code bash>
SET pagesize 1000
SET linesize 150

column SQL_TEXT format a23
column SQL_HANDLE format a20
column PARSING_SCHEMA_NAME format a14
column PLAN_NAME format a30
column ORIGIN format a16
column CREATED_TEXT format a18
column ENABLED format a3 heading "Ena|bld"
column ACCEPTED format a3 heading "Ac|ted"


select  SQL_HANDLE
		, replace(replace(substr(SQL_TEXT,1,20)||' ..',chr(10),''),'  ',' ') as SQL_TEXT
		, PARSING_SCHEMA_NAME
		, PLAN_NAME
		, ORIGIN
		, to_char(CREATED,'dd.mm.yyyy hh24:mi') as CREATED_TEXT
		, ENABLED
		, ACCEPTED
from DBA_SQL_PLAN_BASELINES
order by CREATED
/
</code>

=== Die Pläne in einer Baseline anzeigen ===

Mit der Format **format   =>'outline'**  lassen sich die Hints im Plan anzeigen:
<code bash>
set long 10000

define SQL_BASELINE_PLAN=&1

prompt
prompt Parameter 1 = SQL_BASELINE_PLAN   => &&SQL_BASELINE_PLAN.
prompt

select *
  from table(dbms_xplan.display_sql_plan_baseline( plan_name=>'&&SQL_BASELINE_PLAN.'
                                                  ,format   =>'BASIC ROWS BYTES COST')
			   )
/

select *
  from table(dbms_xplan.display_sql_plan_baseline( plan_name=>'&&SQL_BASELINE_PLAN.'
                                                  ,format   =>'outline')
			   )
/
</code>

==== Quellen ====

  * https://blogs.oracle.com/optimizer/entry/sql_plan_management_part_3_of_4_evolving_sql_plan_baselines_1
  * http://oracle-base.com/articles/11g/sql-plan-management-11gr1.php
  * https://blogs.oracle.com/optimizer/entry/what_is_the_different_between
  * https://blogs.oracle.com/optimizer/entry/sql_plan_management_part_1_of_4_creating_sql_plan_baselines