Alter/disable a sql plan baseline - oracle database script

--- To disable a baseline:  Begin  dbms_spm.alter_sql_plan_baseline(sql_handle =>'SQL_SQL_5818768f40d7be2a',  plan_name => 'SQL_PLAN_aaxsg8yktm4h100404251',  attribute_name=> 'enabled',  attribute_value=>'NO');  END;  /  Begin  dbms_spm.alter_sql_plan_baseline(sql_handle =>'SQL_SQL_5818768f40d7be2a',  plan_name => 'SQL_PLAN_aaxsg8yktm4h100404251',  attribute_name=> 'fixed',  attribute_value=>'NO');  END;  /  -- To enable again, just modify the attribute_value to YES,