Re: SQL plan baseline parameters setting in oracle 11g env

Hi,
btw how does the Optimizer work if setting are as mentioned:
optimizer_capture_sql_plan_baselines FALSE FALSE
optimizer_use_sql_plan_baselines TRUE TRUE
abd there are no sql_plan_baselines at all ?
Thanks,
Gyuri

btw how does the Optimizer work if setting are as mentioned:
optimizer_capture_sql_plan_baselines FALSE FALSE
optimizer_use_sql_plan_baselines TRUE TRUE
abd there are no sql_plan_baselines at all ?When there is no sql_plan_baselines at all then there will be no plans captured into the SPB (SQL Plan Baseline) providing your above two parameters setting.
However, if there is already a sql baseline for a given sql statement then any execution of the same sql statement (with the same force matching signature) which results into a plan that is not into the SPM baseline, will be captured and will be given a enabled and not accepted status.
Best regards
Mohamed Houri
www.hourim.wordpress.com

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h5.
*** 2013-02-12 15:41:27.671
SPM: statement found in SMB
*** 2013-02-12 15:41:27.881
SPM: fixed planId's of plan baseline are: 386463207
SPM: using qksan to reproduce, cost and select accepted plan, sig = 17844158604836855983
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SPM: using qksan to reproduce accepted plan, planId = 386463207
SPM: plan reproducibility - session OFE = 11020003, hinted OFE = 10020003
SPM: planId in plan baseline = 386463207, planId of reproduced plan = 3080367404
------- START SPM Plan Dump -------
SPM: failed to reproduce the plan using the following info:
parse_schema name        : CARADM
plan_baseline signature : 17844158604836855983
plan_baseline plan_id    : 386463207
plan_baseline hintset    :
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    hint num 4 len 36 text: OPT_PARAM('_always_semi_join' 'off')
    hint num 5 len 40 text: OPT_PARAM('_index_join_enabled' 'false')
    hint num 6 len 43 text: OPT_PARAM('_optim_peek_user_binds' 'false')
    hint num 7 len 49 text: OPT_PARAM('_optimizer_skip_scan_enabled' 'false')
    hint num 8 len 39 text: OPT_PARAM('optimizer_index_cost_adj' 1)
    hint num 9 len 40 text: OPT_PARAM('optimizer_index_caching' 100)
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----- Explain Plan Dump -----
----- Plan Table -----
============
Plan Table
============
-------------------------------------------------------------+-----------------------------------+
| Id | Operation                        | Name              | Rows | Bytes | Cost | Time      |
-------------------------------------------------------------+-----------------------------------+
| 0   | SELECT STATEMENT                 |                   |       |       |    22 |           |
| 1   | SORT UNIQUE                     |                   |    41 | 3116 |    21 | 00:00:01 |
| 2   |   NESTED LOOPS                   |                   |       |       |       |           |
| 3   |    NESTED LOOPS                  |                   |    41 | 3116 |    20 | 00:00:01 |
| 4   |     NESTED LOOPS                 |                   |   826 |   50K |    11 | 00:00:01 |
| 5   |      NESTED LOOPS                |                   |   826 |   26K |     3 | 00:00:01 |
| 6   |       TABLE ACCESS FULL          | CL_PROVIDER_GROUP |   116 | 2668 |     2 | 00:00:01 |
| 7   |       INDEX RANGE SCAN           | CPGP_UK           |     7 |    63 |     1 | 00:00:01 |
| 8   |      TABLE ACCESS BY INDEX ROWID | CL_PROVIDER_DETAIL|     1 |    30 |     1 | 00:00:01 |
| 9   |       INDEX UNIQUE SCAN          | CPDE_PK           |     1 |       |     1 | 00:00:01 |
| 10 |     INDEX RANGE SCAN             | FACC_CPDE_FK_I    |     1 |       |     1 | 00:00:01 |
| 11 |    TABLE ACCESS BY INDEX ROWID   | FN_ACCOUNT        |     1 |    14 |     1 | 00:00:01 |
-------------------------------------------------------------+-----------------------------------+
Predicate Information:
7 - access("CPGR"."CPGR_ID"="CPGP"."CPGR_ID")
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Content of other_xml column
===========================
db_version     : 11.2.0.3
parse_schema   : CARADM
plan_hash      : 524147661
plan_hash_2    : 3080367404
Outline Data:
/*+
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------- END SPM Plan Dump -------
SPM: plan reproducibility round 1 (plan outline only)
SPM: using qksan to reproduce accepted plan, planId = 386463207
SPM: planId in plan baseline = 386463207, planId of reproduced plan = 4009937738
------- START SPM Plan Dump -------
SPM: failed to reproduce the plan using the following info:
parse_schema name        : CARADM
plan_baseline signature : 17844158604836855983
plan_baseline plan_id    : 386463207
plan_baseline hintset    :
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    hint num 4 len 36 text: OPT_PARAM('_always_semi_join' 'off')
    hint num 5 len 40 text: OPT_PARAM('_index_join_enabled' 'false')
    hint num 6 len 43 text: OPT_PARAM('_optim_peek_user_binds' 'false')
    hint num 7 len 49 text: OPT_PARAM('_optimizer_skip_scan_enabled' 'false')
    hint num 8 len 39 text: OPT_PARAM('optimizer_index_cost_adj' 1)
    hint num 9 len 40 text: OPT_PARAM('optimizer_index_caching' 100)
    hint num 10 len 10 text: FIRST_ROWS
    hint num 11 len 29 text: OUTLINE_LEAF(@"SEL$EE94F965")
    hint num 12 len 22 text: MERGE(@"SEL$9E43CB6E")
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    hint num 14 len 24 text: OUTLINE(@"SEL$9E43CB6E")
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    hint num 27 len 38 text: USE_NL(@"SEL$EE94F965" "CPDE"@"SEL$2")
    hint num 28 len 38 text: USE_NL(@"SEL$EE94F965" "CFCO"@"SEL$3")
SPM: generated non-matching plan:
----- Explain Plan Dump -----
----- Plan Table -----
============
Plan Table
============
------------------------------------------------------------+-----------------------------------+
| Id | Operation                       | Name              | Rows | Bytes | Cost | Time      |
------------------------------------------------------------+-----------------------------------+
| 0   | SELECT STATEMENT                |                   |       |       |   179 |           |
| 1   | SORT UNIQUE                    |                   |   153 |   11K |   178 | 00:00:01 |
| 2   |   NESTED LOOPS                  |                   |   153 |   11K |   177 | 00:00:01 |
| 3   |    NESTED LOOPS                 |                   |   826 |   50K |    11 | 00:00:01 |
| 4   |     NESTED LOOPS                |                   |   826 |   26K |     3 | 00:00:01 |
| 5   |      TABLE ACCESS FULL          | CL_PROVIDER_GROUP |   116 | 2668 |     2 | 00:00:01 |
| 6   |      INDEX RANGE SCAN           | CPGP_UK           |     7 |    63 |     1 | 00:00:01 |
| 7   |     TABLE ACCESS BY INDEX ROWID | CL_PROVIDER_DETAIL|     1 |    30 |     1 | 00:00:01 |
| 8   |      INDEX UNIQUE SCAN          | CPDE_PK           |     1 |       |     1 | 00:00:01 |
| 9   |    TABLE ACCESS BY INDEX ROWID | FN_ACCOUNT        |     1 |    14 |     1 | 00:00:01 |
| 10 |     INDEX RANGE SCAN            | FACC_CPDE_FK_I    |    27 |       |     1 | 00:00:01 |
------------------------------------------------------------+-----------------------------------+
Predicate Information:
6 - access("CPGR"."CPGR_ID"="CPGP"."CPGR_ID")
8 - access("CPDE"."CPDE_ID"="CPGP"."CPDE_ID")
9 - filter((UPPER("CPGR"."NAME") LIKE UPPER('%'||:1||'%') OR UPPER("CPDE"."NAME") LIKE UPPER('%'||:2||'%') OR UPPER("CPDE"."ABN") LIKE UPPER(:3||'%')
OR "CFCO"."ACCT_NO" LIKE UPPER(:4||'%')))
10 - access("CPDE"."CPDE_ID"="CFCO"."CPDE_ID")
10 - filter("CFCO"."CPDE_ID" IS NOT NULL)
Content of other_xml column
===========================
db_version     : 11.2.0.3
parse_schema   : CARADM
plan_hash      : 3311216257
plan_hash_2    : 4009937738
Outline Data:
/*+
    BEGIN_OUTLINE_DATA
      IGNORE_OPTIM_EMBEDDED_HINTS
      OPTIMIZER_FEATURES_ENABLE('10.2.0.3')
      DB_VERSION('11.2.0.3')
      OPT_PARAM('_always_anti_join' 'off')
      OPT_PARAM('_always_semi_join' 'off')
      OPT_PARAM('_index_join_enabled' 'false')
      OPT_PARAM('_optim_peek_user_binds' 'false')
      OPT_PARAM('_optimizer_skip_scan_enabled' 'false')
      OPT_PARAM('optimizer_index_cost_adj' 1)
      OPT_PARAM('optimizer_index_caching' 100)
      FIRST_ROWS
      OUTLINE_LEAF(@"SEL$EE94F965")
      MERGE(@"SEL$9E43CB6E")
      OUTLINE(@"SEL$4")
      OUTLINE(@"SEL$9E43CB6E")
      MERGE(@"SEL$58A6D7F6")
      OUTLINE(@"SEL$3")
      OUTLINE(@"SEL$58A6D7F6")
      MERGE(@"SEL$1")
      OUTLINE(@"SEL$2")
      OUTLINE(@"SEL$1")
      FULL(@"SEL$EE94F965" "CPGR"@"SEL$1")
      INDEX(@"SEL$EE94F965" "CPGP"@"SEL$1" ("CL_PROVIDER_GROUP_PERIOD"."CPGR_ID" "CL_PROVIDER_GROUP_PERIOD"."CPDE_ID" "CL_PROVIDER_GROUP_PERIOD"."STA
RT_DATE"))
      INDEX_RS_ASC(@"SEL$EE94F965" "CPDE"@"SEL$2" ("CL_PROVIDER_DETAIL"."CPDE_ID"))
      INDEX_RS_ASC(@"SEL$EE94F965" "CFCO"@"SEL$3" ("FN_ACCOUNT"."CPDE_ID"))
      LEADING(@"SEL$EE94F965" "CPGR"@"SEL$1" "CPGP"@"SEL$1" "CPDE"@"SEL$2" "CFCO"@"SEL$3")
      USE_NL(@"SEL$EE94F965" "CPGP"@"SEL$1")
      USE_NL(@"SEL$EE94F965" "CPDE"@"SEL$2")
      USE_NL(@"SEL$EE94F965" "CFCO"@"SEL$3")
    END_OUTLINE_DATA
------- END SPM Plan Dump -------
SPM: plan reproducibility round 2 (hinted OFE only)
SPM: using qksan to reproduce accepted plan, planId = 386463207
SPM: planId in plan baseline = 386463207, planId of reproduced plan = 4009937738
------- START SPM Plan Dump -------
SPM: failed to reproduce the plan using the following info:
parse_schema name        : CARADM
plan_baseline signature : 17844158604836855983
plan_baseline plan_id    : 386463207
plan_baseline hintset    :
    hint num 1 len 37 text: OPTIMIZER_FEATURES_ENABLE('10.2.0.3')
SPM: generated non-matching plan:
----- Explain Plan Dump -----
----- Plan Table -----
============
Plan Table
============
------------------------------------------------------------+-----------------------------------+
| Id | Operation                       | Name              | Rows | Bytes | Cost | Time      |
------------------------------------------------------------+-----------------------------------+
| 0   | SELECT STATEMENT                |                   |       |       |   179 |           |
| 1   | SORT UNIQUE                    |                   |   153 |   11K |   178 | 00:00:01 |
| 2   |   NESTED LOOPS                  |                   |   153 |   11K |   177 | 00:00:01 |
| 3   |    NESTED LOOPS                 |                   |   826 |   50K |    11 | 00:00:01 |
| 4   |     NESTED LOOPS                |                   |   826 |   26K |     3 | 00:00:01 |
| 5   |      TABLE ACCESS FULL          | CL_PROVIDER_GROUP |   116 | 2668 |     2 | 00:00:01 |
| 6   |      INDEX RANGE SCAN           | CPGP_UK           |     7 |    63 |     1 | 00:00:01 |
| 7   |     TABLE ACCESS BY INDEX ROWID | CL_PROVIDER_DETAIL|     1 |    30 |     1 | 00:00:01 |
| 8   |      INDEX UNIQUE SCAN          | CPDE_PK           |     1 |       |     1 | 00:00:01 |
| 9   |    TABLE ACCESS BY INDEX ROWID | FN_ACCOUNT        |     1 |    14 |     1 | 00:00:01 |
| 10 |     INDEX RANGE SCAN            | FACC_CPDE_FK_I    |    27 |       |     1 | 00:00:01 |
------------------------------------------------------------+-----------------------------------+
Predicate Information:
6 - access("CPGR"."CPGR_ID"="CPGP"."CPGR_ID")
8 - access("CPDE"."CPDE_ID"="CPGP"."CPDE_ID")
9 - filter((UPPER("CPGR"."NAME") LIKE UPPER('%'||:1||'%') OR UPPER("CPDE"."NAME") LIKE UPPER('%'||:2||'%') OR UPPER("CPDE"."ABN") LIKE UPPER(:3||'%')
OR "CFCO"."ACCT_NO" LIKE UPPER(:4||'%')))
10 - access("CPDE"."CPDE_ID"="CFCO"."CPDE_ID")
10 - filter("CFCO"."CPDE_ID" IS NOT NULL)
Content of other_xml column
===========================
db_version     : 11.2.0.3
parse_schema   : CARADM
plan_hash      : 3311216257
plan_hash_2    : 4009937738
Outline Data:
/*+
    BEGIN_OUTLINE_DATA
      IGNORE_OPTIM_EMBEDDED_HINTS
      OPTIMIZER_FEATURES_ENABLE('10.2.0.3')
      DB_VERSION('11.2.0.3')
      OPT_PARAM('optimizer_index_cost_adj' 1)
      OPT_PARAM('optimizer_index_caching' 100)
      FIRST_ROWS
      OUTLINE_LEAF(@"SEL$EE94F965")
      MERGE(@"SEL$9E43CB6E")
      OUTLINE(@"SEL$4")
      OUTLINE(@"SEL$9E43CB6E")
      MERGE(@"SEL$58A6D7F6")
      OUTLINE(@"SEL$3")
      OUTLINE(@"SEL$58A6D7F6")
      MERGE(@"SEL$1")
      OUTLINE(@"SEL$2")
      OUTLINE(@"SEL$1")
      FULL(@"SEL$EE94F965" "CPGR"@"SEL$1")
      INDEX(@"SEL$EE94F965" "CPGP"@"SEL$1" ("CL_PROVIDER_GROUP_PERIOD"."CPGR_ID" "CL_PROVIDER_GROUP_PERIOD"."CPDE_ID" "CL_PROVIDER_GROUP_PERIOD"."STA
RT_DATE"))
      INDEX_RS_ASC(@"SEL$EE94F965" "CPDE"@"SEL$2" ("CL_PROVIDER_DETAIL"."CPDE_ID"))
      INDEX_RS_ASC(@"SEL$EE94F965" "CFCO"@"SEL$3" ("FN_ACCOUNT"."CPDE_ID"))
      LEADING(@"SEL$EE94F965" "CPGR"@"SEL$1" "CPGP"@"SEL$1" "CPDE"@"SEL$2" "CFCO"@"SEL$3")
      USE_NL(@"SEL$EE94F965" "CPGP"@"SEL$1")
      USE_NL(@"SEL$EE94F965" "CPDE"@"SEL$2")
      USE_NL(@"SEL$EE94F965" "CFCO"@"SEL$3")
    END_OUTLINE_DATA
------- END SPM Plan Dump -------
SPM: couldn't reproduce any enabled+accepted plan so using the cost-based plan, planId = 3838063866
SPM: kkopmCheckSmbUpdate (enter) xscP=0x9fffffff7f3c8cc8, pmExCtx=0xc000000c8bbade48, ciP=0xc000000c872f95c0, dtCtx=0x6000000000054c30apologies once again for the huge post.

What are the privileges required for explain plan in Oracle 11g database

I am facing the problem in doing a explain plan for a view in Oracle 11g database. When I select from the view like this:
select * from zonewisearpu
It does a select on the view but when I give explain plan like
explain plan for
select * from zonewisearpu
I get the error like insufficient privileges.
Please let me know if things are getting missed out as I guess system level privileges are required to execute this.
I hope, my question is clear.
It’s a humble request to revert urgently if possible as I need to complete a task and do not know the way out.
Regards

975148 wrote:
Thanks for your reply. I have found out that an explain plan is possible on the user's own objects and is not possible on the granted objects from a different schema. For eg, if I do a explain plan on a view querying on tables from a different view, it would not allow the explain plan to proceed. This could mean that explain plan needs different privileges than just a select.
Requesting for a revert to this.
Here is a simple test case that I have perfomed
SQL> create user test1 identified by test1;
User created.
SQL> create user test2 identified by test1;
User created.
SQL> grant connect, resource to test1,test2;
Grant succeeded.
SQL> create table test1.tab1 as select * from v$session;
Table created.
SQL> connect test2/test1
Conencted.
SQL> show user
USER is "TEST2"
SQL>
SQL> explain plan for
2 select sid,serial#,status,username from test1.tab1 where username<> '';
Explained.
SQL>
So, as can be seen I am able to do a explain plan from user test2 for tables belong to user test1.
As far as privileges are concerned, following is the list
SQL> select * from dba_role_privs where grantee in ('TEST1','TEST2') order by 1;
GRANTEE                        GRANTED_ROLE                   ADM DEF
TEST1                          CONNECT                        NO YES
TEST1                          RESOURCE                       NO YES
TEST2                          CONNECT                        NO YES
TEST2                          RESOURCE                       NO YES
SQL>
SQL> select grantee,owner,table_name,privilege from dba_tab_privs where grantee in ('TEST1','TEST2') order by 1;
GRANTEE    OWNER      TABLE_NAME           PRIVILEGE
TEST2      TEST1      TAB1                 SELECT
SQL>
SQL> select * from dba_sys_privs where grantee in ('TEST1','TEST2') order by 1;
GRANTEE    PRIVILEGE                      ADM
TEST1      UNLIMITED TABLESPACE           NO
TEST2      UNLIMITED TABLESPACE           NO
SQL>

Re: SQL plan baseline parameters setting in oracle 11g env

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