'dbms_xplan.display_awr' is showing two plan for single query
Hi,
I am trying to fetch sql plan from awr, but it's showing two different plans for a single query:
PLAN_TABLE_OUTPUT
SQL_ID 2pxv33cr271sb
SELECT P_DEP_BNK_CODE,P_DEP_BRN_CODE,P_DEP_DATE,
P_DEP_DAY_SL,P_DEP_INST_SL,P_INST_AMT
FROM P WHERE
P_DEP_BNK_CODE = :1 AND
P_DEP_BRN_CODE = :2 AND
P_DEP_DATE = :3 AND
P_DEP_LCC_UCC = :4 AND
P_DEP_DAY_SL = :5 AND
(P_REALISED_ON IS NULL AND
P_RTN_DATE IS NULL)
Plan hash value: 3064382432
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | Pstart| Pstop |
| 0 | SELECT STATEMENT | | | | 5 (100)| | | |
| 1 | TABLE ACCESS BY GLOBAL INDEX ROWID| P | 1 | 40 | 5 (0)| 00:00:01 | ROWID | ROWID |
| 2 | INDEX RANGE SCAN | P_PK | 1 | | 4 (0)| 00:00:01 | | |
Note
- dynamic sampling used for this statement (level=5)
SQL_ID 2pxv33cr271sb
SELECT P_DEP_BNK_CODE,P_DEP_BRN_CODE,P_DEP_DATE,
P_DEP_DAY_SL,P_DEP_INST_SL,P_INST_AMT
FROM P WHERE
P_DEP_BNK_CODE = :1 AND
P_DEP_BRN_CODE = :2 AND
P_DEP_DATE = :3 AND
P_DEP_LCC_UCC = :4 AND
P_DEP_DAY_SL = :5 AND
(P_REALISED_ON IS NULL AND
P_RTN_DATE IS NULL)
Plan hash value: 3447007225
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | Pstart| Pstop | TQ |IN-OUT| PQ Distrib |
| 0 | SELECT STATEMENT | | | | 7 (100)| | | | | | |
| 1 | PX COORDINATOR | | | | | | | | | | |
| 2 | PX SEND QC (RANDOM)| :TQ10000 | 1 | 38 | 7 (43)| 00:00:01 | | | Q1,00 | P->S | QC (RAND) |
| 3 | PX BLOCK ITERATOR | | 1 | 38 | 7 (43)| 00:00:01 | KEY | KEY | Q1,00 | PCWC | |
| 4 | TABLE ACCESS FULL| P | 1 | 38 | 7 (43)| 00:00:01 | KEY | KEY | Q1,00 | PCWP | |
------------------------------------------------------------------------------------------------------------------------------The database version is 11.2.0.1 and the underlying table is partitioned. Why this is showing two plans? Although the plan doesn't look expensive but this is causing maximum gets and enq: row lock contention
Regards,
Regards
SQL> set autot on
SQL> SELECT
2 SUM(NVL(P_INST_AMT, 0))
3 FROM
4 AXISCMS.P
5 WHERE
6 P_DEP_BNK_CODE = '211'
7 AND
8 P_DEP_BRN_CODE = '005'
9 AND
10 P_DEP_DATE = to_date('11-NOV-2010')
11 AND
12 P_DEP_LCC_UCC = 'L'
13 AND
P_DEP_DAY_SL = 15001
14 15 AND
16 (P_REALISED_ON IS NOT NULL OR P_RTN_DATE IS NOT NULL );
SUM(NVL(P_INST_AMT,0))
Execution Plan
| Id | Operation | Name | Rows | Bytes | Cost | Pstart| Pstop |
| 0 | SELECT STATEMENT | | 1 | 38 | 8 | | |
| 1 | SORT AGGREGATE | | 1 | 38 | | | |
| 2 | TABLE ACCESS BY GLOBAL INDEX ROWID| P | 1 | 38 | 8 | 72 | 72 |
| 3 | INDEX RANGE SCAN | P_PK | 1 | | 4 | | |
Note
- 'PLAN_TABLE' is old version
Statistics
5 recursive calls
0 db block gets
370 consistent gets
31 physical reads
0 redo size
543 bytes sent via SQL*Net to client
524 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processedThe above query seems to be having cheapest cost but causing a lot of slowness in the database.
Column Description:
COLUMN_NAME DATA_TYPE NUM_DISTINCT NUM_NULLS DENSITY HISTOGRAM
P_AC_NAME VARCHAR2 244672 49251591 4.0871E-06 NONE
P_AC_NO VARCHAR2 413792 48713721 2.4167E-06 NONE
P_ARNGMNT_CREDIT_DATE DATE 1708 39366743 .001724138 HEIGHT BALANCED
P_AUTOLIQ_ACT_DATE DATE 358 50356077 .003003003 HEIGHT BALANCED
P_AUTOLIQ_DUE_DATE DATE 337 50427426 .002967359 NONE
P_AUTOLIQ_FLAG CHAR 1 44746714 1 NONE
P_CLG_DNLD_FLAG NUMBER 1 50481119 .035714286 FREQUENCY
P_CORR_BANK_REAL_DATE DATE 0 50481133 0 NONE
P_DEP_BNK_CODE VARCHAR2 16 0 9.9454E-09 FREQUENCY
P_DEP_BRN_CODE VARCHAR2 671 0 .002531646 HEIGHT BALANCEDIndex Details
INDEX_NAME COLUMN_NAME COLUMN_POSITION
P_IDX_FULL P_INST_NO 1
P_IDX_FULL P_DRAWN_ON_BANK 2
P_IDX_FULL P_DRAWN_ON_BRN 3
P_IDX_FULL P_INST_TYPE 4
P_IDX_FULL P_DRAWN_ON_LOC 5
P_IDX_FULL P_RTN_DATE 6
P_INDX1 P_INST_NO 1
P_INDX2 P_RTN_DATE 1
P_INDX2 P_RTN_DAY_SL 2
P_INDX2 P_RTN_INS_SL 3
P_INDX3 P_REALISED_ON 1
P_INDX3 P_REALISED_DAY_SL 2
P_INDX3 P_REALISED_INS_SL 3
P_INDX4 P_REV_TO_COL_DUE_DATE 1
P_INDX4 P_REV_TO_COL_DONE_ON 2
P_INDX5 P_ARNGMNT_CREDIT_DATE 1
P_INDX6 P_POOL_POST_DATE 1
P_INDX6 P_POOL_POST_DAYSL 2
P_PK P_DEP_BNK_CODE 1
P_PK P_DEP_BRN_CODE 2
P_PK P_DEP_DATE 3
P_PK P_DEP_LCC_UCC 4
P_PK P_DEP_DAY_SL 5
P_PK P_DEP_INST_SL 6
Top 5 Timed Foreground Events
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Avg
wait % DB
Event Waits Time(s) (ms) time Wait Class
DB CPU 58,454 13.1
enq: TX - row lock contention 1,095 17,691 16156 4.0 Applicatio
read by other session 1,719,661 11,392 7 2.6 User I/O
latch: cache buffers chains 264,753 10,758 41 2.4 Concurrenc
latch free 78,456 8,215 105 1.8 Other
The query comes on top in every section in AWR.Regards,
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Differenet Explain Plan for Same Query
DB Version : 11.2.0.3
OS Version : AIX 6
I have two Queries ( The Difference between Them Only 940 and 584 ) When I Generate Explain Plan Different Output Why ? Why CPU time is Different Each Time
First Query Statement :
INSERT INTO TempSearchResult (t_aid,
t_umidl,
t_umidh,
X_CREA_DATE_TIME_MESG)
SELECT z.aid,
z.mesg_s_umidl,
z.mesg_s_umidh,
z.mesg_crea_date_time
FROM ( SELECT m.aid,
m.mesg_s_umidl,
m.mesg_s_umidh,
m.mesg_crea_date_time
FROM RSMESG_ESIDE m
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AND m.mesg_crea_date_time BETWEEN TO_DATE (
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AND TO_DATE (
'20120131 13:00:00',
'YYYYMMDD HH24:MI:SS')
AND m.mesg_frmt_name = 'Swift'
AND m.mesg_sender_x1 = 'SOGEFRPPXXX'
AND m.mesg_nature = 'FINANCIAL_MSG'
AND m.mesg_type LIKE '950'
ORDER BY mesg_crea_date_time) z
WHERE ROWNUM <= 5000
Explain Plan for First Query :
PLAN_TABLE_OUTPUT
Plan hash value: 3901722890
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | Pstart| Pstop |
| 0 | INSERT STATEMENT | | 2866 | 134K| 197 (3)| 00:00:03 | | |
| 1 | LOAD TABLE CONVENTIONAL | TEMPSEARCHRESULT | | | | | | |
|* 2 | COUNT STOPKEY | | | | | | | |
| 3 | VIEW | | 2866 | 134K| 197 (3)| 00:00:03 | | |
|* 4 | SORT ORDER BY STOPKEY | | 2866 | 333K| 197 (3)| 00:00:03 | | |
| 5 | NESTED LOOPS | | 2866 | 333K| 196 (2)| 00:00:03 | | |
PLAN_TABLE_OUTPUT
| 6 | NESTED LOOPS | | 1419 | 148K| 196 (2)| 00:00:03 | | |
|* 7 | HASH JOIN | | 1419 | 141K| 196 (2)| 00:00:03 | | |
| 8 | NESTED LOOPS | | 91 | 1911 | 2 (0)| 00:00:01 | | |
| 9 | TABLE ACCESS BY INDEX ROWID | SUSER | 1 | 10 | 1 (0)| 00:00:01 | | |
|* 10 | INDEX UNIQUE SCAN | IX_SUSER | 1 | | 0 (0)| 00:00:01 | | |
|* 11 | INDEX FULL SCAN | PK_SUNITUSERGROUP | 91 | 1001 | 1 (0)| 00:00:01 | | |
| 12 | PARTITION RANGE SINGLE | | 1450 | 114K| 193 (2)| 00:00:03 | 2 | 2 |
|* 13 | TABLE ACCESS BY LOCAL INDEX ROWID| RMESG | 1450 | 114K| 193 (2)| 00:00:03 | 2 | 2 |
|* 14 | INDEX SKIP SCAN | IX_RMESG | 415 | | 14 (15)| 00:00:01 | 2 | 2 |
|* 15 | INDEX UNIQUE SCAN | PK_SMSGUSERGROUP | 1 | 5 | 0 (0)| 00:00:01 | | |
|* 16 | INDEX UNIQUE SCAN | PK_SBICUSERGROUP | 2 | 24 | 0 (0)| 00:00:01 | | |
PLAN_TABLE_OUTPUT
PLAN_TABLE_OUTPUT
Predicate Information (identified by operation id):
2 - filter(ROWNUM<=5000)
4 - filter(ROWNUM<=5000)
7 - access("X_INST0_UNIT_NAME"="UNIT")
10 - access("SUSER"."USERNAME"="SIDE"."GETMYUSER"())
11 - access("SUSER"."GROUPID"="SUNITUSERGROUP"."GROUPID")
filter("SUSER"."GROUPID"="SUNITUSERGROUP"."GROUPID")
PLAN_TABLE_OUTPUT
13 - filter("RMESG"."MESG_SENDER_X1"='SOGEFRPPXXX' AND "RMESG"."MESG_NATURE"='FINANCIAL_MSG' AND
"RMESG"."MESG_FRMT_NAME"='Swift')
14 - access("RMESG"."MESG_CREA_DATE_TIME">=TO_DATE(' 2012-01-31 10:00:00', 'syyyy-mm-dd hh24:mi:ss') AND
"RMESG"."MESG_TYPE"='950' AND "RMESG"."MESG_CREA_DATE_TIME"<=TO_DATE(' 2012-01-31 13:00:00', 'syyyy-mm-dd hh24:mi:ss'))
filter("RMESG"."MESG_TYPE"='950')
15 - access("X_CATEGORY"="CATEGORY" AND "SUSER"."GROUPID"="SMSGUSERGROUP"."GROUPID")
16 - access("X_OWN_LT"="BICCODE" AND "SUSER"."GROUPID"="SBICUSERGROUP"."GROUPID")
40 rows selected.
Second query
INSERT INTO TempSearchResult (t_aid,
t_umidl,
t_umidh,
X_CREA_DATE_TIME_MESG)
SELECT z.aid,
z.mesg_s_umidl,
z.mesg_s_umidh,
z.mesg_crea_date_time
FROM ( SELECT m.aid,
m.mesg_s_umidl,
m.mesg_s_umidh,
m.mesg_crea_date_time
FROM RSMESG_ESIDE m
WHERE 1 = 1
AND m.mesg_crea_date_time BETWEEN TO_DATE (
'20120117 10:00:00',
'YYYYMMDD HH24:MI:SS')
AND TO_DATE (
'20120117 13:00:00',
'YYYYMMDD HH24:MI:SS')
AND m.mesg_frmt_name = 'Swift'
AND m.mesg_sender_x1 = 'SOGEFRPPGSS'
AND m.mesg_nature = 'FINANCIAL_MSG'
AND m.mesg_type LIKE '548'
ORDER BY mesg_crea_date_time) z
WHERE ROWNUM <= 5000
Explain Plan For Second Query :
PLAN_TABLE_OUTPUT
Plan hash value: 4106071428
| Id | Operation | Name | Rows | Bytes |TempSpc| Cost (%CPU)| Time | Pstart| Pstop |
| 0 | INSERT STATEMENT | | 1073 | 51504 | | 2622 (1)| 00:00:32 | | |
| 1 | LOAD TABLE CONVENTIONAL | TEMPSEARCHRESULT | | | | | | | |
|* 2 | COUNT STOPKEY | | | | | | | | |
| 3 | VIEW | | 1073 | 51504 | | 2622 (1)| 00:00:32 | | |
|* 4 | SORT ORDER BY STOPKEY | | 1073 | 124K| | 2622 (1)| 00:00:32 | | |
| 5 | NESTED LOOPS | | 1073 | 124K| | 2621 (1)| 00:00:32 | | |
PLAN_TABLE_OUTPUT
| 6 | NESTED LOOPS | | 531 | 56817 | | 2621 (1)| 00:00:32 | | |
| 7 | NESTED LOOPS | | 531 | 54162 | | 2621 (1)| 00:00:32 | | |
| 8 | NESTED LOOPS | | 543 | 49413 | | 2621 (1)| 00:00:32 | | |
| 9 | TABLE ACCESS BY INDEX ROWID | SUSER | 1 | 10 | | 1 (0)| 00:00:01 | | |
|* 10 | INDEX UNIQUE SCAN | IX_SUSER | 1 | | | 0 (0)| 00:00:01 | | |
| 11 | PARTITION RANGE SINGLE | | 543 | 43983 | | 2621 (1)| 00:00:32 | 2 | 2 |
|* 12 | TABLE ACCESS BY LOCAL INDEX ROWID| RMESG | 543 | 43983 | | 2621 (1)| 00:00:32 | 2 | 2 |
| 13 | BITMAP CONVERSION TO ROWIDS | | | | | | | | |
| 14 | BITMAP AND | | | | | | | | |
| 15 | BITMAP CONVERSION FROM ROWIDS | | | | | | | | |
|* 16 | INDEX RANGE SCAN | IX_SENDER | 25070 | | | 894 (1)| 00:00:11 | 2 | 2 |
PLAN_TABLE_OUTPUT
| 17 | BITMAP CONVERSION FROM ROWIDS | | | | | | | | |
| 18 | SORT ORDER BY | | | | 408K| | | | |
|* 19 | INDEX RANGE SCAN | IX_RMESG | 25070 | | | 1405 (1)| 00:00:17 | 2 | 2 |
|* 20 | INDEX UNIQUE SCAN | PK_SUNITUSERGROUP | 1 | 11 | | 0 (0)| 00:00:01 | | |
|* 21 | INDEX UNIQUE SCAN | PK_SMSGUSERGROUP | 1 | 5 | | 0 (0)| 00:00:01 | | |
|* 22 | INDEX UNIQUE SCAN | PK_SBICUSERGROUP | 2 | 24 | | 0 (0)| 00:00:01 | | |
Predicate Information (identified by operation id):
PLAN_TABLE_OUTPUT
2 - filter(ROWNUM<=5000)
4 - filter(ROWNUM<=5000)
10 - access("SUSER"."USERNAME"="SIDE"."GETMYUSER"())
12 - filter("RMESG"."MESG_NATURE"='FINANCIAL_MSG' AND "RMESG"."MESG_FRMT_NAME"='Swift')
16 - access("RMESG"."MESG_SENDER_X1"='SOGEFRPPGSS')
19 - access("RMESG"."MESG_CREA_DATE_TIME">=TO_DATE(' 2012-01-17 10:00:00', 'syyyy-mm-dd hh24:mi:ss') AND
"RMESG"."MESG_TYPE"='548' AND "RMESG"."MESG_CREA_DATE_TIME"<=TO_DATE(' 2012-01-17 13:00:00', 'syyyy-mm-dd hh24:mi:ss'))
filter("RMESG"."MESG_TYPE"='548' AND "RMESG"."MESG_CREA_DATE_TIME"<=TO_DATE(' 2012-01-17 13:00:00', 'syyyy-mm-dd
hh24:mi:ss') AND "RMESG"."MESG_CREA_DATE_TIME">=TO_DATE(' 2012-01-17 10:00:00', 'syyyy-mm-dd hh24:mi:ss'))
20 - access("X_INST0_UNIT_NAME"="UNIT" AND "SUSER"."GROUPID"="SUNITUSERGROUP"."GROUPID")
21 - access("X_CATEGORY"="CATEGORY" AND "SUSER"."GROUPID"="SMSGUSERGROUP"."GROUPID")
PLAN_TABLE_OUTPUT
22 - access("X_OWN_LT"="BICCODE" AND "SUSER"."GROUPID"="SBICUSERGROUP"."GROUPID")
45 rows selected.
Table Structure TEMPSEARCHRESULT
CREATE GLOBAL TEMPORARY TABLE TEMPSEARCHRESULT
T_AID NUMBER(3),
T_UMIDL NUMBER(10),
T_UMIDH NUMBER(10),
X_CREA_DATE_TIME_MESG DATE
ON COMMIT PRESERVE ROWS
NOCACHE;
CREATE INDEX SIDE.TEMP_SEARCH_INDEX ON SIDE.TEMPSEARCHRESULT
(T_AID, T_UMIDL, T_UMIDH, X_CREA_DATE_TIME_MESG);Again Thank you For your amazing Answer.
For indexes it's a balance. Check this query which is Simple
Select * from RMESGI generated Explain Plan for it to see effect of indexes .
PLAN_TABLE_OUTPUT
Plan hash value: 1686435785
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | Pstart| Pstop |
| 0 | SELECT STATEMENT | | 11M| 8920M| 376K (1)| 01:15:20 | | |
| 1 | PARTITION RANGE ALL| | 11M| 8920M| 376K (1)| 01:15:20 | 1 | 12 |
| 2 | TABLE ACCESS FULL | RMESG | 11M| 8920M| 376K (1)| 01:15:20 | 1 | 12 |
---------------------------------------------------------------------------------------------1:15:20 For table access and Full Scan Also , I generate new Indexes on the table like the following
CREATE TABLE RMESG(
aid NUMBER(3) NOT NULL,
mesg_s_umidl NUMBER(10) NOT NULL,
mesg_s_umidh NUMBER(10) NOT NULL,
mesg_validation_requested CHAR(18) NOT NULL,
mesg_validation_passed CHAR(18) NOT NULL,
mesg_class CHAR(16) NOT NULL,
mesg_is_text_readonly NUMBER(1) NOT NULL,
mesg_is_delete_inhibited NUMBER(1) NOT NULL,
mesg_is_text_modified NUMBER(1) NOT NULL,
mesg_is_partial NUMBER(1) NOT NULL,
mesg_crea_mpfn_name CHAR(24) NOT NULL,
mesg_crea_rp_name CHAR(24) NOT NULL,
mesg_crea_oper_nickname CHAR(151) NOT NULL,
mesg_crea_date_time DATE NOT NULL,
mesg_mod_oper_nickname CHAR(151) NOT NULL,
mesg_mod_date_time DATE NOT NULL,
mesg_frmt_name VARCHAR2(17) NOT NULL,
mesg_nature CHAR(14) NOT NULL,
mesg_sender_x1 CHAR(11) NOT NULL,
mesg_sender_corr_type VARCHAR2(24) NOT NULL,
mesg_uumid VARCHAR2(50) NOT NULL,
mesg_uumid_suffix NUMBER(10) NOT NULL,
x_own_lt CHAR(8) NOT NULL,
x_inst0_unit_name VARCHAR2(32) default 'NONE' NOT NULL,
x_category CHAR(1) NOT NULL,
archived NUMBER(1) NOT NULL,
restored NUMBER(1) NOT NULL,
mesg_related_s_umid CHAR(16) NULL,
mesg_status CHAR(12) NULL,
mesg_crea_appl_serv_name CHAR(24) NULL,
mesg_verf_oper_nickname CHAR(151) NULL,
mesg_data_last NUMBER(10) NULL,
mesg_token NUMBER(10) NULL,
mesg_batch_reference VARCHAR2(46) NULL,
mesg_cas_sender_reference VARCHAR2(40) NULL,
mesg_cas_target_rp_name VARCHAR2(20) NULL,
mesg_ccy_amount VARCHAR2(501) NULL,
mesg_copy_service_id VARCHAR2(4) NULL,
mesg_data_keyword1 VARCHAR2(80) NULL,
mesg_data_keyword2 VARCHAR2(80) NULL,
mesg_data_keyword3 VARCHAR2(80) NULL,
mesg_delv_overdue_warn_req NUMBER(1) NULL,
mesg_fin_ccy_amount VARCHAR2(24) NULL,
mesg_fin_value_date CHAR(6) NULL,
mesg_is_live NUMBER(1) NULL,
mesg_is_retrieved NUMBER(1) NULL,
mesg_mesg_user_group VARCHAR2(24) NULL,
mesg_network_appl_ind CHAR(3) NULL,
mesg_network_delv_notif_req NUMBER(1) NULL,
mesg_network_obso_period NUMBER(10) NULL,
mesg_network_priority CHAR(12) NULL,
mesg_possible_dup_creation VARCHAR2(8) NULL,
mesg_receiver_alia_name VARCHAR2(32) NULL,
mesg_receiver_swift_address CHAR(12) NULL,
mesg_recovery_accept_info VARCHAR2(80) NULL,
mesg_rel_trn_ref VARCHAR2(80) NULL,
mesg_release_info VARCHAR2(32) NULL,
mesg_security_iapp_name VARCHAR2(80) NULL,
mesg_security_required NUMBER(1) NULL,
mesg_sender_x2 VARCHAR2(21) NULL,
mesg_sender_x3 VARCHAR2(21) NULL,
mesg_sender_x4 VARCHAR2(21) NULL,
mesg_sender_branch_info VARCHAR2(71) NULL,
mesg_sender_city_name VARCHAR2(36) NULL,
mesg_sender_ctry_code VARCHAR2(3) NULL,
mesg_sender_ctry_name VARCHAR2(71) NULL,
mesg_sender_institution_name VARCHAR2(106) NULL,
mesg_sender_location VARCHAR2(106) NULL,
mesg_sender_swift_address CHAR(12) NULL,
mesg_sub_format VARCHAR2(6) NULL,
mesg_syntax_table_ver VARCHAR2(8) NULL,
mesg_template_name VARCHAR2(32) NULL,
mesg_trn_ref VARCHAR2(16) NULL,
mesg_type CHAR(3) NULL,
mesg_user_issued_as_pde NUMBER(1) NULL,
mesg_user_priority_code CHAR(4) NULL,
mesg_user_reference_text VARCHAR2(30) NULL,
mesg_zz41_is_possible_dup NUMBER(1) NULL,
x_fin_ccy CHAR(3) NULL,
x_fin_amount NUMBER(21,4) NULL,
x_fin_value_date DATE NULL,
x_fin_ocmt_ccy CHAR(3) NULL,
x_fin_ocmt_amount NUMBER(21,4) NULL,
x_receiver_x1 CHAR(11) NULL,
x_receiver_x2 VARCHAR2(21) NULL,
x_receiver_x3 VARCHAR2(21) NULL,
x_receiver_x4 VARCHAR2(21) NULL,
last_update DATE NULL,
set_id NUMBER(10) NULL,
mesg_requestor_dn VARCHAR2(101) NULL,
mesg_service VARCHAR2(31) NULL,
mesg_request_type VARCHAR2(31) NULL,
mesg_identifier VARCHAR2(31) NULL,
mesg_xml_query_ref1 VARCHAR2(101) NULL,
mesg_xml_query_ref2 VARCHAR2(101) NULL,
mesg_xml_query_ref3 VARCHAR2(101) NULL,
mesg_appl_sender_reference VARCHAR2(51) NULL,
mesg_payload_type VARCHAR2(31) NULL,
mesg_sign_digest_reference VARCHAR2(41) NULL,
mesg_sign_digest_value VARCHAR2(51) NULL,
mesg_use_pki_signature NUMBER(1) NULL
PARTITION BY RANGE(MESG_CREA_DATE_TIME) (
PARTITION SIDE_MIN VALUES LESS THAN (TO_DATE(20000101, 'YYYYMMDD')) TABLESPACE TBS_SIDEDB_DA_01);
CREATE UNIQUE INDEX SIDE.IX_PK_RMESG on SIDE.RMESG (AID, MESG_S_UMIDH, MESG_S_UMIDL, MESG_CREA_DATE_TIME) LOCAL;
ALTER TABLE SIDE.RMESG ADD CONSTRAINT IX_PK_RMESG PRIMARY KEY (AID, MESG_S_UMIDH, MESG_S_UMIDL, MESG_CREA_DATE_TIME) USING INDEX SIDE.IX_PK_RMESG;
CREATE INDEX SIDE.ix_rmesg_cassender ON SIDE.rmesg (MESG_CAS_SENDER_REFERENCE) LOCAL;
CREATE INDEX SIDE.ix_rmesg_creationdate ON SIDE.rmesg (MESG_CREA_DATE_TIME) LOCAL;
CREATE INDEX SIDE.ix_rmesg_trnref ON SIDE.rmesg (MESG_TRN_REF) LOCAL;
CREATE INDEX SIDE.ix_rmesg_uumid ON SIDE.rmesg (MESG_UUMID, MESG_UUMID_SUFFIX) LOCAL;
CREATE INDEX SIDE.IX_UNIT_NAME_RMESG on RMESG(mesg_crea_date_time,X_INST0_UNIT_NAME) LOCAL;
CREATE INDEX SIDE.IX_RMESG on RMESG(mesg_crea_date_time ,mesg_type,x_fin_ccy) LOCAL;
CREATE INDEX SIDE.IX_NAME_FORMAT_TYPE_RMESG on RMESG(mesg_frmt_name,mesg_sub_format,mesg_type,mesg_crea_date_time ) LOCAL;same Explain Plan Same Result .
I always remember TOM Quote "full scans are not evil, indexes are not good"
Which Mean Something Wrong Goes with Indexes , the partition depend on MESG_CREA_DATE_TIME Column I create Index for this column but same explain plan Appear every time. With Same Time.
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Thanks in advance.......
Edited by: 900105 on Dec 1, 2011 4:52 AMChange the query so it is syntactically different, but has the same semantics (meaning). That way CBO will reparse it and you might get a new execution plan.
One simple way to do that is to add a dummy predicate ( 45=45) to the where clause. The predicate must be changed every time the query is executed ( 46=46 , 47=47 ,… ).
Iordan Iotzov
http://iiotzov.wordpress.com/ -
BI Report is showing two rows for a single record
Dear Experts
This is Raja
I am Facing one issue in BI Report,
I have created report based on a Infocube which is getting data from two DSO. one is Standard [ Billing Condition Data]and another one is ZDSO[Targets}. these two requests go in the Infocube
1. Budget- zdbudget [DSO]
2.Actuals -0sd_o06 [DSO]
I need to make report Like this :For a specific period
EX:1
Material Sold to party Actual Budget/Target Variance Actual YTD Budget YTD
M100 S100 21 30 10 21 30
here budget{ Budget DSO} values i am getting Material wise sold to party is not coming through file. But for Actual values sold to party is coming, that's why my report is showing like this..
Ex:2
Material Sold to party Actual Budget/Target Variance Actual YTD Budget YTD
M100 S100 21 10 21
30 -30 30
Since the sold to party is not available in Budget DSO in the report For Every Material it's showing Two Rows.
How can bring this in to one Line..Like EX:1
Please give Valuable Suggestions..Say the data is like this.
Material Sold to Party Act Bud
M1 S1 100 0
M1 # 0 50
M1 S2 200 0
And you want to see like below.
Material Sold to Party Act Bud
M1 S1 100 50
M1 S2 200 50
If this is your requirement, let the sold to party be in Rows.
In columns, for budget, create a local selection, drag budget kf, sold to party (restrict this by # and right click and choose constant selection). This makes the budget kf independent of what is coming in the rows and always shows data corresponding to sold to party #. Hope this is clear. -
Why tkprof did not show explain plan for some sql statements
Hi,
I did a trace for one of the session, hoping to find the explain plan for its tkprof. However, I only get this:
INSERT INTO AUDIT_TABLE
VALUES
( :B1 , :B2 , :B3 , :B4 , :B5 , :B6 , :B8 , :B7 )
call count cpu elapsed disk query current rows
Parse 1 0.00 0.00 0 0 0 0
Execute 3698 8.08 59.41 3348 566 19092 3698
Fetch 0 0.00 0.00 0 0 0 0
total 3699 8.08 59.42 3348 566 19092 3698
Misses in library cache during parse: 1
Misses in library cache during execute: 1
Optimizer mode: CHOOSE
Parsing user id: 30 (recursive depth: 2)
********************************************************************************Any idea why the explain plan is missing?
Also looking at the above statistics, what can I conclude?Thanks John. What's ur take on this statistics then?
call count cpu elapsed disk query current rows
Parse 0 0.00 0.00 0 0 0 0
Execute 1798 12.23 36.75 1758 5404 7418 1798
Fetch 0 0.00 0.00 0 0 0 0
total 1798 12.23 36.75 1758 5404 7418 1798
Misses in library cache during parse: 0
Optimizer mode: CHOOSE
Parsing user id: 30 (recursive depth: 1)
******************************************************************************** -
Fetch New Data shows two entries for one account
I have on a variety of accounts on my iPhone and my iPad: an iCloud, an Exchange, a IMAP, and a couple of Gmail accounts.
Earlier this week, I noticed that in the "Fetch New Data" setting (Settings > Mail, Contacts, Calendar > Fetch New Data), there are TWO entries for one of the Gmail accounts.
One entry lists "Mail and Calendars." I use this for this particular Gmail account. I have these selected in the "Accounts" section of Settings > Mail, Contacts, Calendar.
The other entry lists "Contacts and Calendars." I don't sync Contacts, but I do sync Calendars. Why is it listed twice?
I tried deleting
the offending Gmail account, but it did not delete the duplicate entries.
erasing all settings
all of my accounts, including iCloud, IMAP, and other accounts.
The ghost account is still there, fetching calendars and contacts.
Has anyone else seen this behavior?
I considered erasing settings and content, but that seems pretty extreme for something that might not be that big of an issue.Exact same problem here!!! Iphone 5s with IOS 7.0.3, using Gmail among other email providers.
So it is definately a bug - the "fetch new data ghost account". I hope it will be solved in a newer release. In the meantime, I switched the ghost account to "manual" so it shouldn't interfere... -
Suddenly my iCal has begun showing two lines for each birthday in my address book
Suddenly my iCal monthly view has begun listing two lines for each birthday from the address book. I didn't make any changes to the preferences. How do I return to one listing per birthday?
I've noticed this as well. I think it started with 10.7.4.
-
Different query plans for same query on same DB
Hi,
HP-Ux
Oracle Database 10.2.0.4
We are experiencing a strange issue. One of our night batch process is taking invariably more time to execute. The process does not consume time at 1 particular query. Everyday we find a new query taking more time than previous execution.
Now, when we see the explain plan while the query is executing, we see NESTED LOOP SEMI (with improper index being used). At the same time if we take the query and see the explain plan seperately, we get HASH JOIN SEMI (with proper index being used). Also, if we execute this query with the values as in procedure, it finishes within mili seconds (as it should).
The tables and indexes are analyzed everyday before the process starts.
Can anybody explain, why the same query shows two different plans at the same time ?
Thanks a lot in advance :)Aalap Sharma wrote:
HP-Ux
Oracle Database 10.2.0.4
We are experiencing a strange issue. One of our night batch process is taking invariably more time to execute. The process does not consume time at 1 particular query. Everyday we find a new query taking more time than previous execution.
Now, when we see the explain plan while the query is executing, we see NESTED LOOP SEMI (with improper index being used). At the same time if we take the query and see the explain plan seperately, we get HASH JOIN SEMI (with proper index being used). Also, if we execute this query with the values as in procedure, it finishes within mili seconds (as it should).
The tables and indexes are analyzed everyday before the process starts.
Can anybody explain, why the same query shows two different plans at the same time ?As already mentioned, you might hit typical issues in 10.2: The column workload based SIZE AUTO statistics gathering feature and/or bind variable peeking.
How do you analyze the tables and indexes before the process starts? Can you share the exact call with parameters?
Some ideas:
1. If your process is "new", then the column workload monitoring of the database might recognize the column usage pattern and generate histograms on some of your columns. It might take a while until the workload has been established so that all columns got histograms according to the workload (It needs a certain number of usages/executions before the workload is registered as relevant). Until then you might get different execution plans each time the statistics are refreshed due to new histograms being added.
2. If the default 10g statistics gathering job is active, it might gather different statistics during the night than your individual job that runs prior to the processing. This could be one possible explanation why you get different plans on the next day.
3. "Bind Variable Peeking" is possibly another issue you might run into. How do you test the query so that you get a different, well performing plan? Does your original statement use bind variables? Do you use literals to reproduce? Note that using EXPLAIN PLAN on statements involving bind variables can lie, since it doesn't perform bind variable peeking by default.
Regards,
Randolf
Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/ -
Explain plan for running query
Hi everyone,
I come to know how to generate explain plan for a given query by giving
Explain plan for select * fro emp;
Consider a query running for 5 hrs in a session and i want to genrate explain plan for that current query in its 4th hour i dont know the sql as well
all the steps by step would be much apppreciated
like finding Current SQL then so on
Thanks
Shareef912856 wrote:
Hi everyone,
I come to know how to generate explain plan for a given query by giving
Explain plan for select * fro emp;
Consider a query running for 5 hrs in a session and i want to genrate explain plan for that current query in its 4th hour i dont know the sql as well
all the steps by step would be much apppreciated
like finding Current SQL then so on
Thanks
ShareefYOu can also use dbms_xplain to generate plan used in v$sql. like for example
SQL>SELECT SQL_ID, CHILD_NUMBER FROM V$SQL WHERE SQL_TEXT LIKE 'select * from em%';
SQL_ID CHILD_NUMBER
6kd5fkqdjb8fu 0
SQL>SELECT * FROM TABLE(DBMS_XPLAN.DISPLAY_CURSOR('6kd5fkqdjb8fu',0,'ALLSTATS'));If you need the actual tuntime statistics used by sql statement then you need to put hint /*+ gather_plan_statistics */ in sql ststement, something like
select /*+ gather_plan_statistics */ * from emp;
and then generate the explain plan for this
Have a look
http://hoopercharles.wordpress.com/2010/03/01/dbms_xplan-format-parameters/
select * from table(dbms_xplan.display_cursor(null,null,'ALLSTATS LAST')); -
Hi,
As per documentation i learnt, For Every SQL statement i.e Executed , it will generate 23 Executions plan for a single query. The Runtime Engine will choose the Best Execution plan for Fetch Operation.
In which Data dictionary view , do i have to check all those 23 Executions plans..
Thanksstartup wrote:
Hi,
As per documentation i learnt, For Every SQL statement i.e Executed , it will generate 23 Executions plan for a single query. The Runtime Engine will choose the Best Execution plan for Fetch Operation.
In which Data dictionary view , do i have to check all those 23 Executions plans..
Thanks
please post URL to document that says 23 Execute Plans are generated. -
Different execution plan for same query but for different condition value
Hi All,
I'm facing a strange situation where same query for different condition not working.
1--
Select top 10 * from revenuefact(nolock)
where feecode ='OW4'
2--
Select top 10 * from revenuefact(nolock)
where feecode ='BTE'
1st query is returning result easily but 2nd query is taking too long. Column
feecode has already Non-clustered index and Clustered index is also available for another col RevenueSID.
I was surprised when checked the query execution plan for both the above queries which is quite different (as per attached below). Can anyone suggest me the reason behind it.
And solution for the same. One more thing that data for feecode BTE is inserting through different source instead of others feecode and table contains more than 300 million rows.When I speak with people inside Microsoft who work with the optimizer, the refuse to accept the work "bug" when a query produces the correct result, but with a suboptimal plan. They prefer to use the word "limitation".
The limitation here is that when the optimizer compares two plans, it only looks at the estimated cost. As far as I know, it does not perform any analysis from the perspective "what if the statistics are wrong"? They do provide the hint OPTIMIZE
FOR UNKNOWN, but that does not work then there is a constant as in this case.
The optimizer will surely distinguish between TOP 10 and TOP 10000000. With the latter, you have all reason to expect a Clustered Index Scan no matter which value you search for - unless you pick a value for which the histogram indicates that there are no
rows.
Interesting enough, I was able to reproduce the situation in my Northgale database, which is an inflated version of Northwind, and where statistics should be accurate.
SELECT TOP 10 * FROM Orders WHERE EmployeeID = 8
results in a CI scan, and so does also EmployeeID = 7, and even 5. There are only 2292 rows out of a total of 344305 rows. If I try EmployeeID 808 for which there are 1797, the optimizer goes for the index seek.
Erland Sommarskog, SQL Server MVP, [email protected] -
My CC shows two apps for Ps; a Ps CC app and a Ps CC (2014) app. what's the difference?
Why 2 Ps apps?
Yes, they are two separate apps, just like CS5 and CS6 are separate. You can keep both of them if you want, as there are some features that have been removed from CC 2014. I have PS CS6, CC, & CC 2014 on my computer.
-
Explain plan for same query in three databases
Hi,
We have three databases dev, uat and test, all have same init parameters and almost same data. We are running a query which runs long on dev and on uat and test it runs very fast, the explain plan on uat and test shows a cost of around 4000 but on dev the cost is 20000. Statistics were collected on three instances 2 days ago and the objects are also same.
My question is what else should I look for this optimizer behaviour? the database version is 10.2.0.3.
Please help.
Thanks
Clinuser627471 wrote:
Hi,
We have three databases dev, uat and test, all have same init parameters and almost same data. We are running a query which runs long on dev and on uat and test it runs very fast, the explain plan on uat and test shows a cost of around 4000 but on dev the cost is 20000. Statistics were collected on three instances 2 days ago and the objects are also same.
My question is what else should I look for this optimizer behaviour? the database version is 10.2.0.3.
Please help.
Thanks
Clinpost both EXPLAIN PLAN here
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