2026-03-12 21:01:38

automatic_SPM/automatic_SPM_01.txt

@@ -0,0 +1,78 @@
+show parameter optimizer_capture_sql_plan_baselines
+
+-- sould be FALSE for automatic SPM
+
+col parameter_name for a40
+col parameter_value for a20
+
+SELECT parameter_name,parameter_value
+FROM dba_sql_management_config;
+
+-- check for parameter_name='AUTO_SPM_EVOLVE_TASK'
+
+col task_name for a40
+
+SELECT task_name,enabled
+FROM dba_autotask_schedule_control
+WHERE  dbid = sys_context('userenv','con_dbid');
+
+-- check for task_name = 'Auto SPM Task';
+
+------------
+-- to ENABLE 
+------------
+BEGIN
+  DBMS_SPM.CONFIGURE('AUTO_SPM_EVOLVE_TASK','ON');
+END;
+/
+
+-- For non-autonomous systems only, in the relevant PDB
+-- execute the following as SYS to ensure the correct plan source
+-- and ACCEPT_PLANS has its default value, TRUE,
+BEGIN
+   DBMS_SPM.SET_EVOLVE_TASK_PARAMETER(
+      task_name => 'SYS_AUTO_SPM_EVOLVE_TASK',
+      parameter => 'ALTERNATE_PLAN_SOURCE',
+      value     => 'SQL_TUNING_SET');
+END;
+/
+BEGIN
+   DBMS_SPM.SET_EVOLVE_TASK_PARAMETER(
+      task_name => 'SYS_AUTO_SPM_EVOLVE_TASK' ,
+      parameter => 'ACCEPT_PLANS',
+      value     => 'TRUE');
+END;
+/
+
+-------------
+-- to DISABLE 
+-------------
+BEGIN
+  DBMS_SPM.CONFIGURE('AUTO_SPM_EVOLVE_TASK','OFF');
+END;
+/
+
+-- For non-autonomous systems only, 
+-- execute the following as SYS if you want to return
+-- parameters to 'manual' SPM values - for example
+BEGIN 
+   DBMS_SPM.SET_EVOLVE_TASK_PARAMETER( 
+      task_name => 'SYS_AUTO_SPM_EVOLVE_TASK' ,
+      parameter => 'ALTERNATE_PLAN_BASELINE', 
+      value     => 'EXISTING');
+END; 
+/
+BEGIN
+  DBMS_SPM.SET_EVOLVE_TASK_PARAMETER(
+	task_name => 'SYS_AUTO_SPM_EVOLVE_TASK',
+	parameter => 'ALTERNATE_PLAN_SOURCE',
+	value => 'AUTO');
+END;
+/
+
+
+
+
+
+
+