Different behavior for index
Hi.
I have the table inl_allocations with following index:
CREATE INDEX inl_allocations_n1 ON inl_allocations
( ship_header_id ASC,
adjustment_num ASC,
ship_line_id ASC )
When running query below, we have different behaviors for indexes in different DB:
SELECT *
FROM INL_ALLOCATIONS CA, INL_SHIP_LINES_ALL CC
WHERE CC.SHIP_LINE_ID = CA.SHIP_LINE_ID
AND CC.SHIP_HEADER_ID = CA.SHIP_HEADER_ID
1- For DB 1 (11.2.0.1.0) the explain plan for query:
(3) INDEX INDEX FULL SCAN INL.INL_ALLOCATIONS_N1 [Analyzed]
Est. Rows: 33 Cost: 1
2- For DB2 (11.2.0.3.0) the explain plan for query does not use the index INL_ALLOCATIONS_N1, and we have a FULL in table.
(3) TABLE TABLE ACCESS FULL INL.INL_ALLOCATIONS [Analyzed]
(3) Blocks: 13 Est. Rows: 167 of 269 Cost: 5
We would like to know the reason why there are differences between both environments.
Thanks and Regards.
many years ago Oracle used to optimize queries with a set of rules that ranked the potential access paths and finally chosed the possible operation with the highest rank. So for two systems with the same DDL Oracle would have generated the same plan. This was the rule based optimizer (RBO) and its shady ghost still dwells somewhere deep in the Oracle code. Since at least Oracle 8i (> 10 years ago) the standard optimization engine is the cost based optimizer (CBO) which uses statistics to generate execution plans: and if the data of your systems is different (or even if the data is identic but its physical order is different and changes the index clustering factor) the CBO can and will generate different plans and use or not use existing indexes.
Regards
Martin
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optimizer_dynamic_sampling integer 2
optimizer_features_enable string 10.2.0.4
optimizer_index_caching integer 0
optimizer_index_cost_adj integer 100
optimizer_mode string ALL_ROWS
optimizer_secure_view_merging boolean TRUE
**Environment**
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Release 10.2.0.4.0 - Production
CORE 10.2.0.4.0 Production
TNS for Solaris: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production
Note: : There are slight difference in the no of records in the attached sheet.However, I wanted to tell that i have tested with exact same data and was getting similar results but I couldn't retain the data untill collecting the details in the attachment
TEST1 COMPARE TABLE LEVE STATS used by CBO
ENVIRONMENT A
TABLE_NAME NUM_ROWS BLOCKS LAST_ANALYZED
ASSET 3607425 167760 5/02/2013 22:11
METER_CONFIG_HEADER 3658 80 5/01/2013 0:07
METER_CONFIG_ITEM 32310 496 5/01/2013 0:07
NMI 1899024 33557 18/02/2013 10:55
REGISTER 4830153 101504 18/02/2013 9:57
SDP_LOGICAL_ASSET 1607456 19137 18/02/2013 15:48
SDP_LOGICAL_REGISTER 5110781 78691 18/02/2013 9:56
SERVICE_DELIVERY_POINT 1425890 42468 18/02/2013 13:54
ENVIRONMENT B
TABLE_NAME NUM_ROWS BLOCKS LAST_ANALYZED
ASSET 4133939 198570 16/02/2013 10:02
METER_CONFIG_HEADER 3779 80 16/02/2013 10:55
METER_CONFIG_ITEM 33720 510 16/02/2013 10:55
NMI 1969000 33113 16/02/2013 10:58
REGISTER 5837874 120104 16/02/2013 11:05
SDP_LOGICAL_ASSET 1788152 22325 16/02/2013 11:06
SDP_LOGICAL_REGISTER 6101934 91088 16/02/2013 11:07
SERVICE_DELIVERY_POINT 1447589 43804 16/02/2013 11:11
TEST ITEM 2 COMPARE INDEX STATS used by CBO
ENVIRONMENT A
TABLE_NAME INDEX_NAME UNIQUENESS BLEVEL LEAF_BLOCKS DISTINCT_KEYS AVG_LEAF_BLOCKS_PER_KEY AVG_DATA_BLOCKS_PER_KEY CLUSTERING_FACTOR NUM_ROWS
ASSET IDX_AST_DEVICE_CATEGORY_SK NONUNIQUE 2 9878 67 147 12982 869801 3553095
ASSET IDX_A_SAPINTLOGDEV_SK NONUNIQUE 2 7291 2747 2 639 1755977 3597916
ASSET SYS_C00102592 UNIQUE 2 12488 3733831 1 1 3726639 3733831
METER_CONFIG_HEADER SYS_C0092052 UNIQUE 1 12 3670 1 1 3590 3670
METER_CONFIG_ITEM SYS_C0092074 UNIQUE 1 104 32310 1 1 32132 32310
NMI IDX_NMI_ID NONUNIQUE 2 6298 844853 1 2 1964769 1965029
NMI IDX_NMI_ID_NK NONUNIQUE 2 6701 1923072 1 1 1922831 1923084
NMI IDX_NMI_STATS NONUNIQUE 1 106 4 26 52 211 211
REGISTER REG_EFFECTIVE_DTM NONUNIQUE 2 12498 795 15 2899 2304831 4711808
REGISTER SYS_C00102653 UNIQUE 2 16942 5065660 1 1 5056855 5065660
SDP_LOGICAL_ASSET IDX_SLA_SAPINTLOGDEV_SK NONUNIQUE 2 3667 1607968 1 1 1607689 1607982
SDP_LOGICAL_ASSET IDX_SLA_SDP_SK NONUNIQUE 2 3811 668727 1 2 1606204 1607982
SDP_LOGICAL_ASSET SYS_C00102665 UNIQUE 2 5116 1529606 1 1 1528136 1529606
SDP_LOGICAL_REGISTER SYS_C00102677 UNIQUE 2 17370 5193638 1 1 5193623 5193638
SERVICE_DELIVERY_POINT IDX_SDP_NMI_SK NONUNIQUE 2 4406 676523 1 2 1423247 1425890
SERVICE_DELIVERY_POINT IDX_SDP_SAP_INT_NMI_SK NONUNIQUE 2 7374 676523 1 2 1458238 1461108
SERVICE_DELIVERY_POINT SYS_C00102687 UNIQUE 2 4737 1416207 1 1 1415022 1416207
ENVIRONMENT B
TABLE_NAME INDEX_NAME UNIQUENESS BLEVEL LEAF_BLOCKS DISTINCT_KEYS AVG_LEAF_BLOCKS_PER_KEY AVG_DATA_BLOCKS_PER_KEY CLUSTERING_FACTOR NUM_ROWS
ASSET IDX_AST_DEVICE_CATEGORY_SK NONUNIQUE 2 8606 121 71 16428 1987833 4162257
ASSET IDX_A_SAPINTLOGDEV_SK NONUNIQUE 2 8432 1780146 1 1 2048170 4162257
ASSET SYS_C00116157 UNIQUE 2 13597 4162263 1 1 4158759 4162263
METER_CONFIG_HEADER SYS_C00116570 UNIQUE 1 12 3779 1 1 3734 3779
METER_CONFIG_ITEM SYS_C00116592 UNIQUE 1 107 33720 1 1 33459 33720
NMI IDX_NMI_ID NONUNIQUE 2 6319 683370 1 2 1970460 1971313
NMI IDX_NMI_ID_NK NONUNIQUE 2 6597 1971293 1 1 1970771 1971313
NMI IDX_NMI_STATS NONUNIQUE 1 98 48 2 4 196 196
REGISTER REG_EFFECTIVE_DTM NONUNIQUE 2 15615 1273 12 2109 2685924 5886582
REGISTER SYS_C00116748 UNIQUE 2 19533 5886582 1 1 5845565 5886582
SDP_LOGICAL_ASSET IDX_SLA_SAPINTLOGDEV_SK NONUNIQUE 2 4111 1795084 1 1 1758441 1795130
SDP_LOGICAL_ASSET IDX_SLA_SDP_SK NONUNIQUE 2 4003 674249 1 2 1787987 1795130
SDP_LOGICAL_ASSET SYS_C004520 UNIQUE 2 5864 1795130 1 1 1782147 1795130
SDP_LOGICAL_REGISTER SYS_C004539 UNIQUE 2 20413 6152850 1 1 6073059 6152850
SERVICE_DELIVERY_POINT IDX_SDP_NMI_SK NONUNIQUE 2 3227 660649 1 2 1422572 1447803
SERVICE_DELIVERY_POINT IDX_SDP_SAP_INT_NMI_SK NONUNIQUE 2 6399 646257 1 2 1346948 1349993
SERVICE_DELIVERY_POINT SYS_C00128706 UNIQUE 2 4643 1447946 1 1 1442796 1447946
TEST ITEM 3 COMPARE PLANS
ENVIRONMENT A
Plan hash value: 4109575732
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| 0 | SELECT STATEMENT | | 13 | 2067 | | 135K (2)| 00:27:05 |
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|* 3 | HASH JOIN | | 6 | 900 | | 135K (2)| 00:27:04 |
|* 4 | HASH JOIN ANTI | | 1 | 137 | | 135K (2)| 00:27:03 |
|* 5 | TABLE ACCESS BY INDEX ROWID| NMI | 1 | 22 | | 5 (0)| 00:00:01 |
| 6 | NESTED LOOPS | | 1 | 131 | | 95137 (2)| 00:19:02 |
|* 7 | HASH JOIN | | 1 | 109 | | 95132 (2)| 00:19:02 |
|* 8 | TABLE ACCESS FULL | ASSET | 36074 | 1021K| | 38553 (2)| 00:07:43 |
|* 9 | HASH JOIN | | 90361 | 7059K| 4040K| 56578 (2)| 00:11:19 |
|* 10 | HASH JOIN | | 52977 | 3414K| 2248K| 50654 (2)| 00:10:08 |
|* 11 | HASH JOIN | | 39674 | 1782K| | 40101 (2)| 00:08:02 |
|* 12 | TABLE ACCESS FULL | REGISTER | 39439 | 1232K| | 22584 (2)| 00:04:32 |
|* 13 | TABLE ACCESS FULL | SDP_LOGICAL_REGISTER | 4206K| 56M| | 17490 (2)| 00:03:30 |
|* 14 | TABLE ACCESS FULL | SERVICE_DELIVERY_POINT | 675K| 12M| | 9412 (2)| 00:01:53 |
|* 15 | TABLE ACCESS FULL | SDP_LOGICAL_ASSET | 1178K| 15M| | 4262 (2)| 00:00:52 |
|* 16 | INDEX RANGE SCAN | IDX_NMI_ID_NK | 2 | | | 2 (0)| 00:00:01 |
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|* 19 | TABLE ACCESS FULL | REGISTER | 39439 | 500K| | 22584 (2)| 00:04:32 |
|* 20 | TABLE ACCESS FULL | SDP_LOGICAL_REGISTER | 4206K| 56M| | 17490 (2)| 00:03:30 |
|* 21 | TABLE ACCESS FULL | METER_CONFIG_HEADER | 3658 | 47554 | | 19 (0)| 00:00:01 |
|* 22 | TABLE ACCESS FULL | METER_CONFIG_ITEM | 7590 | 68310 | | 112 (2)| 00:00:02 |
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| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 181 | 103K (2)| 00:20:47 |
| 1 | HASH UNIQUE | | 1 | 181 | 103K (2)| 00:20:47 |
|* 2 | HASH JOIN ANTI | | 1 | 181 | 103K (2)| 00:20:47 |
|* 3 | HASH JOIN | | 1 | 176 | 56855 (2)| 00:11:23 |
|* 4 | HASH JOIN | | 1 | 163 | 36577 (2)| 00:07:19 |
|* 5 | TABLE ACCESS BY INDEX ROWID | ASSET | 1 | 44 | 4 (0)| 00:00:01 |
| 6 | NESTED LOOPS | | 1 | 131 | 9834 (2)| 00:01:59 |
| 7 | NESTED LOOPS | | 1 | 87 | 9830 (2)| 00:01:58 |
| 8 | NESTED LOOPS | | 1 | 74 | 9825 (2)| 00:01:58 |
|* 9 | HASH JOIN | | 1 | 52 | 9820 (2)| 00:01:58 |
|* 10 | TABLE ACCESS BY INDEX ROWID| METER_CONFIG_HEADER | 1 | 14 | 1 (0)| 00:00:01 |
| 11 | NESTED LOOPS | | 1 | 33 | 116 (2)| 00:00:02 |
|* 12 | TABLE ACCESS FULL | METER_CONFIG_ITEM | 1 | 19 | 115 (2)| 00:00:02 |
|* 13 | INDEX RANGE SCAN | SYS_C00116570 | 1 | | 1 (0)| 00:00:01 |
|* 14 | TABLE ACCESS FULL | SERVICE_DELIVERY_POINT | 723K| 13M| 9699 (2)| 00:01:57 |
|* 15 | TABLE ACCESS BY INDEX ROWID | NMI | 1 | 22 | 5 (0)| 00:00:01 |
|* 16 | INDEX RANGE SCAN | IDX_NMI_ID_NK | 2 | | 2 (0)| 00:00:01 |
|* 17 | TABLE ACCESS BY INDEX ROWID | SDP_LOGICAL_ASSET | 1 | 13 | 5 (0)| 00:00:01 |
|* 18 | INDEX RANGE SCAN | IDX_SLA_SDP_SK | 2 | | 2 (0)| 00:00:01 |
|* 19 | INDEX RANGE SCAN | IDX_A_SAPINTLOGDEV_SK | 2 | | 2 (0)| 00:00:01 |
|* 20 | TABLE ACCESS FULL | REGISTER | 76113 | 2378K| 26743 (2)| 00:05:21 |
|* 21 | TABLE ACCESS FULL | SDP_LOGICAL_REGISTER | 5095K| 63M| 20245 (2)| 00:04:03 |
| 22 | VIEW | | 90889 | 443K| 47021 (2)| 00:09:25 |
|* 23 | HASH JOIN | | 90889 | 2307K| 47021 (2)| 00:09:25 |
|* 24 | TABLE ACCESS FULL | REGISTER | 76113 | 966K| 26743 (2)| 00:05:21 |
|* 25 | TABLE ACCESS FULL | SDP_LOGICAL_REGISTER | 5095K| 63M| 20245 (2)| 00:04:03 |
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16 - access("NMI_SK"="NMI_SK")
17 - filter("ROW_CURRENT_IND"='Y')
18 - access("SERVICE_DELIVERY_POINT_SK"="SERVICE_DELIVERY_POINT_SK")
19 - access("SAP_INT_LOG_DEVICE_SK"="SAP_INT_LOG_DEVICE_SK")
20 - filter((SUBSTR("REGISTER_ID_CD",1,1)='4' OR SUBSTR("REGISTER_ID_CD",1,1)='5' OR
SUBSTR("REGISTER_ID_CD",1,1)='6') AND "REGISTER_TYPE_CD"='C' AND "ROW_CURRENT_IND"='Y')
21 - filter("ROW_CURRENT_IND"='Y')
23 - access("SAP_INT_LOGICAL_REGISTER_SK"="SAP_INT_LOGICAL_REGISTER_SK")
24 - filter((SUBSTR("REGISTER_ID_CD",1,1)='1' OR SUBSTR("REGISTER_ID_CD",1,1)='2' OR
SUBSTR("REGISTER_ID_CD",1,1)='3') AND "REGISTER_TYPE_CD"='C' AND "ROW_CURRENT_IND"='Y')
25 - filter("ROW_CURRENT_IND"='Y')Edited by: abhilash173 on Feb 24, 2013 9:16 PM
Edited by: abhilash173 on Feb 24, 2013 9:18 PMHi Paul,
I misread your question initially .The system stats are outdated in both ( same result as seen from aux_stats) .I am not a DBA and do not have access to gather system stats fresh.
select * from sys.aux_stats$
SNAME PNAME PVAL1 PVAL2
SYSSTATS_INFO STATUS NULL COMPLETED
SYSSTATS_INFO DSTART NULL 02-16-2011 15:24
SYSSTATS_INFO DSTOP NULL 02-16-2011 15:24
SYSSTATS_INFO FLAGS 1 NULL
SYSSTATS_MAIN CPUSPEEDNW 1321.20523 NULL
SYSSTATS_MAIN IOSEEKTIM 10 NULL
SYSSTATS_MAIN IOTFRSPEED 4096 NULL
SYSSTATS_MAIN SREADTIM NULL NULL
SYSSTATS_MAIN MREADTIM NULL NULL
SYSSTATS_MAIN CPUSPEED NULL NULL
SYSSTATS_MAIN MBRC NULL NULL
SYSSTATS_MAIN MAXTHR NULL NULL
SYSSTATS_MAIN SLAVETHR NULL NULL -
How to get radio behavior for multiple embedded movies on a single page?
Hi,
I've got a single XHTML page with multiple embedded movie objects. The movies all play fine. I would like to convert the page to achieve a radio-style behavior for the movies so only one is running at any time. That is, if I click on a movie that's not running, the movie that is running will stop before the new movie begins. Any ideas on how this can be achieved? This might be more of a javascript question, but I was hoping somebody might have already done something similar. Thanks.
PaulRoy,
It's an ugly solution but you can always add a hidden dummy structure item or KF and add all variables in the first executed query in the workbook.
- Find the query that has the most of the infobjects used in the other queries.
- Make sure this query is executed first in WB by removing/adding it in WB.
- Create the hidden dummy KF and add all the extra variables to this KF.
Solution usually works fine for me, but its not really feasible if the queries are have to many different infoobjects.
BR //Joakim -
Best practice for index creation
Hello,
I am working on Oracle 10g and AIX.
I have one table with 9 columns.
The sql queries on this table are such that out of 10 column it always having 5 column in the where clause.
So ,we have concatenated index on these 5 columns.
Other columns 4 , can come in to where clause in any order and number , like of only 2 columns can be using in where clause or 3 columns
or non of these columns.
Is this better to create index on all 4 columns , it should be concatenated index or individual index on all 4 columns.
i do not have all sql statement , becasue as per developers there are 10 modules accessing this tables and each may have 100 sql statements on this table..
Any idea...what i can do in this scenario ..create concatenated index on all 4 columns or individual index or no index..youre coming at it wrong. you could do more harm then good taking that approach, you need to isolate the individual sql statements hitting that table. system trace, tkprof, statspack, awr are your friends here
Once you identify the queries, get yourself a dev version of the table and start playing the indexes, get tkprof and explain plans for the queries. In general, only the predicates in the sql select are candidates for index usage.
if you have 5 cols and any one of the cols could be used in combination or individual, maybe start creating 5 different indexes and then with the combo indexes. but only after you tkprof / explain plan them before and after, youre just guessing otherwise. -
How to configure Mail to use different ports for POP and SMTP?
I am trying to configure Mail for my AT&T account. It requires me to configure POP (incoming) mail for port 995, and SMTP (outgoing) mail for port 465. However there doesn't seem to be an option to configure different ports for these. Is that correct, or am I missing something?
Alternatively can I configure two accounts, one for POP incoming and one for SMTP outgoing? My incoming POP account does work, but in configuring an outgoing account I still have to configure a POP server name and that will not work for the outgoing port.
Any advice on how to solve this would be appreciated.Understand. It is really quite easy to do in Mail, too. Kappy told you how to set up the smtp piece. I gave you pop info. These two things are on different panels within Account Preferences.
To recap his and my posts
SMTP:
In Mail Prefs, click on the accounts icon. Click on your att yahoo account on the list. On the right of the window, in the lower portion, you see an smtp server menu. Open it and select edit. Select Edit Server, then click on its Advanced tab. Set up port 465 with SSL.
POP:
This is on a different panel in Mail PRefs Accounts. Now in Mail Prefs, click on the accounts icon. Click on your att yahoo account on the list. On the right of the window, you see three tabs, acc't info, mbox behaviors, and Advanced. This is where things are different than for smtp. You are going to configure stuff on a different "advanced" panel than where you were for the smtp stuff. Click on the advanced tab. There is a field for port with a SSL checkbox next to it and an authentication drop down menu. Check the box and it should quickfill change from 110 to 995. Autentication drop down is probably already default to password.
Did you visit the URL I gave you previously? It even gives you screen shots. -
Hi Experts,
Is it standard behavior for VL10A to show two records when a Sales Document has been blocked? Their only difference is the field Delivery Block. In VL10A, the first record has a delivery block of BLANK, the second has 99.
Here's how to replicate the issue.
Create sales order.
When you check VL10A, the Sales document is there.
Change sales order field (RSD) in VA02, Save.
When you check VL10A, there are now two records, one has a blank delivery block, the other has 99.
The expected result here is that after changing in VA02, there will be only 1 record in VL10A and it should have delivery block of 99.
Assumptions:
1. We know that VL10A retrieves its records from VEPVG. The problem is, in VEPVG, delivery block is a key field. So I think that during VA02, when the delivery block of 99 is assigned, this creates a record in VEPVG instead of updating the existing one. Is this standard behavior, and are my assumptions correct?
Thanks in advanced experts. Appreciate your prompt response,
JackHello Jack,
This is the standard behavior. When I check in our system, I too can see two entries but with different good issue date and delivery date and the block is specific to good issue date, delivery date.
So there is no problem in it. try to give the delivery date which includes two table entries delivery date and execute the transaction VL10A.
Regards,
TP -
ESS Benefits Generic Enrollment - Different behavior backend v/s portal
We are using the ESS Benefits generic enrollment service for enrollment kicking off the adjustment reasons on IT 0378.
Here is the configuration set up, trying to simplify to explain the matter. We are on ECC 6.0 with EHP2.
1. Configured one plan type in savings category.
2. Within this plan type, configured 2 plans.
3. Configured all other related configuration to set up the 2 plans.
4. Configured the adjustment reason and the appropriate plan type created in step 2.
5. Created the required adjustment reason on 378.
In HRBEN0001 transaction via backendwe can see the 2 plans configured within the plan type.
But when Trying to enroll from ESS - only one plan can be seen for that plan type, the other plan is not shown at all.
OK - eventually, debugged and found this piece of code in FM HR_BEN_ESS_FILL_SELECTION_DISP. The 2 different plans are there until this piece of code takes one of them Off...
CODE -
3.) Reduce entries to one entry per type and period
delete adjacent duplicates from selection_display_gt
comparing pernr
barea
bpcat
pltyp
begda
sprps.
CODE -
This FM is called only for ESS application and not for backed program.
What we do not understand is why is it behaving differntly on backend v/s portal.
Any information or experience with this form any one of you will be highly appreciated.
Thanks.Siddharth,
Thanks for your reply. Yes ESS has its own FMs. The UI, user exits, BADIs etc are different for backend v/s front end.
What we are not clear with, is the different behavior in core functionality -- i.e. When the adjustment reason is processed from the backend using HRBEN0001 - The 2 plans within the Plan Type are available for elections. BUT the same adjustment reason for the same penr when processed from ESS - there is just one plan available for elections.
It's clear from the code, that it is deleting one plan and this code is within the FM which is called only from ESS. But we are still not sure why it should behave differently i.e. 2 plans via backend v/s one plan via ESS.
Wanted to see if anyone can share any information if they have a similar benefits set up .. 2 plans within one plan type FOR savings plan category and then having a adjustment reason set up.
Regards.
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