Tannel podder compare optimizer versions scripts

 



optimizer_features_matrix.sql

-- Copyright 2018 Tanel Poder. All rights reserved. More info at http://tanelpoder.com
-- Licensed under the Apache License, Version 2.0. See LICENSE.txt for terms & conditions.

PROMPT display a matrix of optimizer parameters which change when changing optimizer_features_enabled...

CREATE TABLE opt_param_matrix(
    opt_features_enabled VARCHAR2(20) NOT NULL
  , parameter            VARCHAR2(75) NOT NULL
  , value                VARCHAR2(1000)
)
/

CREATE TABLE opt_fix_matrix (
    opt_features_enabled VARCHAR2(20) NOT NULL
  , bugno                    NUMBER       
  , value                    NUMBER
  , sql_feature              VARCHAR2(100)
  , description              VARCHAR2(100)
  , optimizer_feature_enable VARCHAR2(25)
  , event                    NUMBER
  , is_default               NUMBER
)
/
 
BEGIN
    FOR i IN (select value from v$parameter_valid_values where name = 'optimizer_features_enable' order by ordinal) LOOP
        EXECUTE IMMEDIATE 'alter session set optimizer_features_enable='''||i.value||'''';
        EXECUTE IMMEDIATE 'insert into opt_param_matrix select :opt_features_enable, n.ksppinm, c.ksppstvl from sys.x$ksppi n, sys.x$ksppcv c where n.indx=c.indx' using i.value;
        EXECUTE IMMEDIATE 'insert into opt_fix_matrix   select :opt_features_enable, bugno, value, sql_feature, description, optimizer_feature_enable, event, is_default FROM v$session_fix_control WHERE session_id=USERENV(''sid'')' using i.value;
    END LOOP;
END;
/

COMMIT;

PROMPT To test, run: @cofep.sql 10.2.0.1 10.2.0.4







cofep.sql

-- Copyright 2018 Tanel Poder. All rights reserved. More info at http://tanelpoder.com
-- Licensed under the Apache License, Version 2.0. See LICENSE.txt for terms & conditions.

-- Compare Optimizer Features Enable Parameter values
-- By Tanel Poder ( http://www.tanelpoder.com )
--   Requires opt_param_matrix table to be created (using tools/optimizer/optimizer_features_matrix.sql)
--   Requires Oracle 11g+ due to PIVOT clause (but you can rewrite this SQL in earlier versions)`

col pd_name head NAME for a50
col pd_value head VALUE for a30
column pd_descr heading DESCRIPTION format a70 word_wrap

-- funky pivot formatting for sqlplus

COL "'18.1.0'" FOR A30 WRAP
COL "'8.0.0'" FOR A30 WRAP
COL "'8.0.3'" FOR A30 WRAP
COL "'8.0.4'" FOR A30 WRAP
COL "'8.0.5'" FOR A30 WRAP
COL "'8.0.6'" FOR A30 WRAP
COL "'8.0.7'" FOR A30 WRAP
COL "'8.1.0'" FOR A30 WRAP
COL "'8.1.3'" FOR A30 WRAP
COL "'8.1.4'" FOR A30 WRAP
COL "'8.1.5'" FOR A30 WRAP
COL "'8.1.6'" FOR A30 WRAP
COL "'8.1.7'" FOR A30 WRAP
COL "'9.0.0'" FOR A30 WRAP
COL "'9.0.1'" FOR A30 WRAP
COL "'9.2.0'" FOR A30 WRAP
COL "'9.2.0.8'" FOR A30 WRAP
COL "'10.1.0'" FOR A30 WRAP
COL "'10.1.0.3'" FOR A30 WRAP
COL "'10.1.0.4'" FOR A30 WRAP
COL "'10.1.0.5'" FOR A30 WRAP
COL "'10.2.0.1'" FOR A30 WRAP
COL "'10.2.0.2'" FOR A30 WRAP
COL "'10.2.0.3'" FOR A30 WRAP
COL "'10.2.0.4'" FOR A30 WRAP
COL "'10.2.0.5'" FOR A30 WRAP
COL "'11.1.0.6'" FOR A30 WRAP
COL "'11.1.0.7'" FOR A30 WRAP
COL "'11.2.0.1'" FOR A30 WRAP
COL "'11.2.0.2'" FOR A30 WRAP
COL "'11.2.0.3'" FOR A30 WRAP
COL "'11.2.0.4'" FOR A30 WRAP
COL "'12.1.0.1'" FOR A30 WRAP
COL "'12.1.0.2'" FOR A30 WRAP
COL "'12.2.0.1'" FOR A30 WRAP
COL "'18.1.0.1'" FOR A30 WRAP


prompt Compare Optimizer_Features_Enable Parameter differences
prompt for values &1 and &2

select m.*, n.ksppdesc pd_descr
from (
    select * 
    from opt_param_matrix 
    pivot( 
        max(substr(value,1,20)) 
        for opt_features_enabled in ('&1','&2')
    ) 
    where "'&1'" != "'&2'"
) m
, sys.x$ksppi n
, sys.x$ksppcv c
where
    n.indx=c.indx
and n.ksppinm = m.parameter
/




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