Maintaining database statistics

i have created index for a table and now i want maintain database statistics for this index
i do not have any idea how how can i do that.
need suggestion on this
Edited by: Pankaj Prasad on Aug 25, 2009 12:52 PM

i have to create index for table which i have already made with field matnr dispo etc.
now i have activated it. but after this point we have to take care for data base statics
this last part i haven't done before and have no idea may be with T-code is db20 or 21
need some suggestions

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Resolution to error - Unable to update Database Statistics

OK, If there's one thing i hate most about SAP, its the dreaded installation, I am always so paranoid, as to something will definitely go wrong,
Lately i realized that it aint my mind , but the damn installation itself is pretty damn stupid. Why cant SAP leave the installation packaging to professionals like installshield...
Unfortunately SAP doesnt think of it as a better idea, so until then lets try to resolve as many errors as possible thru these forums..
Here's one error resolution ,i am pretty sure, many are checking for..
Use the following procedure to resolve error
Warning - "loading of sql client library oci.dll failed"
Error - Unable to update Database Statistics, Check BRCONNECT.log
The problem seems to be with the SAP Patch Collection InstallMaster disc Material No.(51032143_13).
To resolve the problem, here's what needs to be done,
1)Install DB Instance as usual.Then after the installation errors out due to loading of sql
client library oci.dll ..
2)I unsar the downloaded DBATOOLS.sar (Thanks for the Link Andreaz!!!)
log into sapnet (eg. service.sap.com) with your user-id/pwd:
-> downloads -> support packages and patches -> entry by application group -> additional
components -> sap kernel -> now chose either 32 or 64 bit; either unicode or non-unicode ->
sap kernel 6.40 -> windows server -> oracle -> download the package DBATOOLS Package for
Oracle 9.2.x ... brconnect is part of that package...
3)Copy the files in the Unsar'd package, as follows
 overwrite br*.exe to S:\usr\sap\R31\SYS\exe\run
 overwrite initSID.sap to S:\usr\sap\R31\SYS\exe\run &
S:\usr\sap\R31\SYS\exe\nuc\NTI386
 overwrite libsbt.dll to S:\usr\sap\R31\SYS\exe\run &
S:\usr\sap\R31\SYS\exe\nuc\NTI386
 overwrite sapdba_role.sql to S:\usr\sap\R31\SYS\exe\run &
S:\usr\sap\R31\SYS\exe\nuc\NTI386
4) Retry the installation again & Guess what!! it works....
Warning-: I initially tried a shortcut by replacing DBATOOLS.sar on the installmaster disc, rather than following above steps, but that doesnt seem to work, the installation fails as as soon as Tablespace creation starts. So the shortcut aint a good one..

Well, it looks like you resolved your problem yourself.
you can send feedback to SAP directly instead of posting this here in a forum.

Installation error at Update database statistics

Hi,
During DB installation at Update database statistics Installation error.
Error shows that
MTU- 03010 Execution of the command "/sapmnt/QMS/exe/brconnect '-u' '/' '-c' '-f' 'crsyn -o 'SAPQMS' finished with status TST_ERROR
brconnect.log error
/usr/lib/hpux/dld.so: Unable to to find library 'libclntsh.so.10.1
Any help.
- Kristene

Hello kristene Jyo,
Did you get any breakthrough in this issue. Because i am also facing the same issue while installling the NW04 with oracle 9.0.2.0 but during "Update Statistice" step of Database instance installation it is giving me below error.
"Unable to find library 'libclntsh.so.10.1"
I already have 3 instance running fine on the same server of ECC 5.0 which i installed with oracle 9 same database.
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Thanks and Regards
Dheeraj Thareja

DB statistics - Use of 'Construct Database Statistics ' in process chain

Hello,
I would like to know the differences (or is it complementar ?) between:
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- variant 'Construct Database Statistics' that can be used in process chains
Have the 2 techniques to be used together ?
Thanks in advance,
Regards

Hi Thomas,
Statistics should get loaded in the Business content Statistics cubes .........now by using the process type 'Construct Database Statistics' we can automate the process............actually ...........The DB Statistics options for the InfoCube allow to collect current DB statistics about the tables associated with the InfoCube............the collection of statistics can be automated.........
Regards,
Debjani........

When to use the "construct database statistics" process chain' item

Hello, everybody.
Information 1:
In our BW system we have a job from DBA guys that build statistcs for the entire database. This job runs every day in the dawn.
Information 2:
In several process chain flows, we use the item "Construct Database Statistics" to update the statistics after cube upload.
Information 3:
I checked the log from both jobs and found several tables analyzed in first and second cases.
The question:
Is this step inside the process chain unnecessary? Exist any situation when this step is useful?
Thanks in advance,
Henrique Teodoro

Hi.
I found one advice about this issue in the follow thread:
/message/3460818#3460818 [original link is broken]
Regards,
Henrique Teodoro

ERROR 2009-05-24 08:46:36 CJS-00288 Could not update database statistics.

Hi all.
i am in the middle of SAP ECC 5.0 installation .In the Database instance installation at the step 29 database update statistics, system stops giving error
ERROR 2009-05-24 08:46:44
CJS-00288 Could not update database statistics. 
DIAGNOSIS: Command brconnect -u / -c -f crsyn -o SAPDB5 returned 3. SOLUTION: See brconnect.log for details.
when i checked in brconnect.log i found below error message
BR0801I BRCONNECT 7.00 (16)
BR0999E Loading of SQL client library oci.dll failed - please check Oracle configuration
BR0310E Connect to database instance DB5 failed
BR0280I BRCONNECT time stamp: 2009-05-24 08.46.44
BR0804I BRCONNECT terminated with errors
Q))Which oracle version are you using since BRTOOLS 7.0 is designed to work with Oracle 10g?
If you are using an oracle 9.2.* it is needed to install oracle instant client or to downgrade your db tools (brt* tools)...... Through :Forums I came to know that we have to downgrade the br*tools to
Could you please help me how to downgrade the Brtools or could you please suggest me how to proceed
please help me
Thanks
Senthil

Hi All,
Thanks for your help, that error it has passed but now in 31 st step starting RFC jobs
i get this error
ERROR 2009-05-25 18:08:05
FRF-00007 Unable to open RFC connection.
ERROR 2009-05-25 18:08:05
FRF-00063 RFC logon failed with message: Failed: SAP_CMINIT3 : rc=20 > Connect to SAP gateway failedConnect_PM GWHOST=CTSINSAPEC5, GWSERV=sapgw00, ASHOST=CTSINSAPEC5, SYSNR=00
but early during the last error update database statistics the SAP MMC console was up and running but now SAP is down during this error
i tried to start SAP manually but it never works dispatcher goes down, i searched in forums and thought to update the kernal, so i updated the kernal also and tried it then also same error
please help me my situation is very pathatic, i will be greatful if you help me
Thanks
Senthil

ERROR 2008-04-30 09:10:35 CJS-00288 Could not update database statistics.

Hi Gurus..
Hi i am in the middle of NW 2004 installation . At the step 29 database update statistics, system stops giving error
ERROR 2008-04-30 09:10:35
CJS-00288 Could not update database statistics.
DIAGNOSIS: Command brconnect -u / -c -f crsyn -o SAPP47 returned
3.SOLUTION: See brconnect.log for details.
When i checked in brconnect.log i found below error message
BR0801I BRCONNECT 7.00 (16)
BR0999E Loading of SQL client library oci.dll failed - please check Oracle configuration
BR0310E Connect to database instance P47 failed
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BR0804I BRCONNECT terminated with errors
Q))Which oracle version are you using since BRTOOLS 7.0 is desinged to work with Oracle 10g?
If you are using an oracle 9.2.* it is needed to install oracle instantclient or to downgrade your db tools (brt* tools)...... Through :Forums I came to know that we have to downgrade the br*tools to
Could you please help me how to downgrade the Brtools.
It's urgent.
Points will be awarded .
Regards
Jan.

Hi janakiram
Now i am facing the same error which you have faced before, have you solved that issue if it so could you pls help me how to solve this
Hi All,
i am in the middle of SAP ECC 5.0 installation .In the Database instance installation at the step 29 database update statistics, system stops giving error
ERROR 2009-05-24 08:46:44
CJS-00288 Could not update database statistics.
DIAGNOSIS: Command brconnect -u / -c -f crsyn -o SAPDB5 returned 3.
SOLUTION: See brconnect.log for details.
when i checked in brconnect.log i found below error message
BR0801I BRCONNECT 7.00 (16)
BR0999E Loading of SQL client library oci.dll failed - please check Oracle configuration
BR0310E Connect to database instance DB5 failed
BR0280I BRCONNECT time stamp: 2009-05-24 08.46.44
BR0804I BRCONNECT terminated with errors
Q))Which oracle version are you using since BRTOOLS 7.0 is designed to work with Oracle 10g?
If you are using an oracle 9.2.* it is needed to install oracle instant client or to downgrade your db tools (brt* tools)...... Through :Forums I came to know that we have to downgrade the br*tools to
Could you please help me how to downgrade the Brtools or could you please suggest me how to proceed
please help me
Thanks
Senthil

Error when Update Oracle database statistics

HI All,
Just recent we have upgraded oracle 11 in SAP Landscape. while we are trying to update database statistics through this command
brconnect -c -u / -f stats -t all -f collect -p 4
It is throwing following message without completion
BR0280I BRCONNECT thread 2: time stamp: 2011-09-22 03.17.46
BR0881I Collecting statistics for table SAPSR3./BEV3/CHASTEU with method/sample
C ...
ORA-24550: signal received: Unhandled exception: Code=ebf00baa Flags=0
Can anyone guide us.
Thanks.
PrinceJ

Have you applied patches to your 11g database?... Theres some info online about ORA-24550 been a know issue and a patch has been released for that...
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Update Database Statistics during System Export

hi All,
I am getting following error on step (Update Database Statistics ) during system export.
WARNING 2011-06-17 15:13:35
Execution of the command "E:\usr\sap\PRD\SYS\exe\uc\NTAMD64\
brconnect.exe -u / -c -o summary -f stats -o SAPSR3 -t all -m +I -s
P10 -f allsel,collect,method,precision,space,keep -p 4"
finished with return code 5.
Output: BR0801I BRCONNECT 7.00 (31)BR0805I Start of BRCONNECT processing:
cegczbfe.sta 2011-06-17 15.12.02BR0484I BRCONNECT log file:
G:\oracle\PRD\sapcheck\cegczbfe.sta
ERROR 2011-06-17 15:13:35
CJS-30023 Process call 'E:\usr\sap\PRD\SYS\exe\uc\NTAMD64\
brconnect.exe -u / -c -o summary -f stats -o SAPSR3 -t all -m +I -s P10
-f allsel,collect,method,precision,space,keep -p 4'
exits with error code 5. For details see log file(s) brconnect.log.
there is small part of brconnect.log is:
BR0204I Percentage done: 27.88%, estimated end time: 15:16
BR0001I **************____________________________________
BR0280I BRCONNECT thread 2: time stamp: 2011-06-17 15.13.31
BR0301E SQL error -20003 in thread 2 at location stats_tab_collect-20, SQL statement:
'BEGIN DBMS_STATS.GATHER_TABLE_STATS (OWNNAME => '"SAPSR3"', TABNAME => '"/BEV3/CHCL_STAT"', ESTIMATE_PERCENT => NULL, METHOD_OPT => 'FOR ALL COLUMNS SIZE 1', DEGREE => NULL, CASCADE => TRUE, NO_INVALIDATE => FALSE); END;'
ORA-20003: Specified bug number (5099019) does not exist
ORA-06512: at "SYS.DBMS_STATS", line 14830
ORA-06512: at "SYS.DBMS_STATS", line 14851
ORA-06512: at line 1
BR0886E Checking/collecting statistics failed for table SAPSR3./BEV3/CHCL_STAT
BR0280I BRCONNECT thread 2: time stamp: 2011-06-17 15.13.31
BR0301E SQL error -20003 in thread 2 at location stats_tab_collect-20, SQL statement:
'BEGIN DBMS_STATS.GATHER_TABLE_STATS (OWNNAME => '"SAPSR3"', TABNAME => '"/BEV3/CHCL_STATT"', ESTIMATE_PERCENT => NULL, METHOD_OPT => 'FOR ALL COLUMNS SIZE 1', DEGREE => NULL, CASCADE => TRUE, NO_INVALIDATE => FALSE); END;'
ORA-20003: Specified bug number (5099019) does not exist
ORA-06512: at "SYS.DBMS_STATS", line 14830
ORA-06512: at "SYS.DBMS_STATS", line 14851
ORA-06512: at line 1
BR0886E Checking/collecting statistics failed for table SAPSR3./BEV3/CHCL_STATT
BR0280I BRCONNECT thread 2: time stamp: 2011-06-17 15.13.31
BR0301E SQL error -20003 in thread 2 at location stats_tab_collect-20, SQL statement:
'BEGIN DBMS_STATS.GATHER_TABLE_STATS (OWNNAME => '"SAPSR3"', TABNAME => '"/BEV3/CHCMVWOBJ"', ESTIMATE_PERCENT => NULL, METHOD_OPT => 'FOR ALL COLUMNS SIZE 1', DEGREE => NULL, CASCADE => TRUE, NO_INVALIDATE => FALSE); END;'
ORA-20003: Specified bug number (5099019) does not exist
ORA-06512: at "SYS.DBMS_STATS", line 14830
ORA-06512: at "SYS.DBMS_STATS", line 14851
ORA-06512: at line 1
BR0886E Checking/collecting statistics failed for table SAPSR3./BEV3/CHCMVWOBJ
BR0280I BRCONNECT thread 2: time stamp: 2011-06-17 15.13.31
BR0301E SQL error -20003 in thread 2 at location stats_tab_collect-20, SQL statement:
'BEGIN DBMS_STATS.GATHER_TABLE_STATS (OWNNAME => '"SAPSR3"', TABNAME => '"/BEV3/CHCMVWOBPR"', ESTIMATE_PERCENT => NULL, METHOD_OPT => 'FOR ALL COLUMNS SIZE 1', DEGREE => NULL, CASCADE => TRUE, NO_INVALIDATE => FALSE); END;'
ORA-20003: Specified bug number (5099019) does not exist
ORA-06512: at "SYS.DBMS_STATS", line 14830
BEGIN DBMS_STATS.GATHER_TABLE_STATS (OWNNAME => '"SAPSR3"', TABNAME => '"/BEV3/CHCTLVAR"', ESTIMATE_PERCENT => NULL, METHOD_OPT => 'FOR ALL COLUMNS SIZE 1', DEGREE => NULL, CASCADE => TRUE, NO_INVALIDATE => FALSE); END;'
ORA-20003: Specified bug number (5099019) does not exist
ORA-06512: at "SYS.DBMS_STATS", line 14830
ORA-06512: at "SYS.DBMS_STATS", line 14851
ORA-06512: at line 1
ORA-06512: at line 1
BR0886E Checking/collecting statistics failed for table SAPSR3./BEV3/CHCTMSTFUB
BR0280I BRCONNECT thread 2: time stamp: 2011-06-17 15.13.34
BR0844E 100 errors occurred in thread 2 - terminating processing of the thread...
BR0280I BRCONNECT time stamp: 2011-06-17 15.13.34
BR0848I Thread 2 finished with return code -1
BR0280I BRCONNECT time stamp: 2011-06-17 15.13.34
BR0879I Statistics checked for 0 tables
BR0878I Number of tables selected to collect statistics after check: 0
BR0880I Statistics collected for 639/0 tables/indexes
BR0889I Structure validated for 0/749/0 tables/indexes/clusters
BR1308E Collection of statistics failed for 68292/0 tables/indexes
BR0806I End of BRCONNECT processing: cegczbfe.sta 2011-06-17 15.13.34
BR0280I BRCONNECT time stamp: 2011-06-17 15.13.35
BR0804I BRCONNECT terminated with errors
how can I resolve this issue?
Regards,
majamil

hi SM,
I have applied these patches with Opatch which successfully applied.
is it ok or i had to use the MOpatch for these?
one more thing for your information , when i execute Delete Harmful Statistics under Database Statistics in brtools then i got following
BR0280I BRCONNECT time stamp: 2011-06-30 08.10.53
BR0818I Number of tables found in DBSTATC for owner SAPSR3: 390
BR0280I BRCONNECT time stamp: 2011-06-30 08.10.53
BR0807I Name of database instance: PRD
BR0808I BRCONNECT action ID: cegfjniv
BR0809I BRCONNECT function ID: dst
BR0810I BRCONNECT function: stats
BR0812I Database objects for processing: HARMFUL
BR0852I Number of tables to delete statistics: 0
BR0856I Number of indexes to delete statistics: 0
BR0863W No tables/indexes found to update/delete statistics or validate structur
e
BR0806I End of BRCONNECT processing: cegfjniv.dst 2011-06-30 08.10.53
BR0280I BRCONNECT time stamp: 2011-06-30 08.10.53
BR0803I BRCONNECT completed successfully with warnings
BR0292I Execution of BRCONNECT finished with return code 1
BR0668I Warnings or errors occurred - you can continue to ignore them or go back
to repeat the last action
BR0280I BRTOOLS time stamp: 2011-06-30 08.10.53
BR0670I Enter 'c[ont]' to continue, 'b[ack]' to go back, 's[top]' to abort:
c
why i am getting this return code 1?
Regards,
Edited by: majamil on Jun 30, 2011 8:20 AM

RE: Looking for some database statistics and wait event statistics

Hi:
We are using Oracle 10g RAC on Sun Solaris 5.9.
1) In GV$SYSSTAT, we cannot find the following database statistics:
     'global cache converts',
     'global cache convert time',
     'global cache gets',
     'global cache get time',
     'global cache convert timeouts',
     'global cache defers'
2) In GV$SYSTEM_EVENT, we cannot find the following wait event:
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For 1) and 2), could you please tell us where to retrieve the above information,
or suggest a reasonable alternative?
Have these stats been removed in Oracle 10g?
Have they been renamed? To what?
3) We currently compute the number of additional redo logs that can be accommodated in the free space of the archive directory using the formula:
(arhive directory free space / redo log file size)
However, using ASM we find that the free space for a ASM diskgroup is being reported as zero in the table v$asm_diskgroup if the diskgroup is mounted manually. How would one go about retrieving the free space for a logical volume?
Thanks

Hi:
We are using Oracle 10g RAC on Sun Solaris 5.9.
1) In GV$SYSSTAT, we cannot find the following database statistics:
     'global cache converts',
     'global cache convert time',
     'global cache gets',
     'global cache get time',
     'global cache convert timeouts',
     'global cache defers'
2) In GV$SYSTEM_EVENT, we cannot find the following wait event:
     'buffer busy global CR'
For 1) and 2), could you please tell us where to retrieve the above information,
or suggest a reasonable alternative?
Have these stats been removed in Oracle 10g?
Have they been renamed? To what?
3) We currently compute the number of additional redo logs that can be accommodated in the free space of the archive directory using the formula:
(arhive directory free space / redo log file size)
However, using ASM we find that the free space for a ASM diskgroup is being reported as zero in the table v$asm_diskgroup if the diskgroup is mounted manually. How would one go about retrieving the free space for a logical volume?
Thanks

Effect of Updating Database statistics to program's performance

Hi,
What is the Effect of Updating Database statistics to program's performance?
Will the program run's faster after the update/
Thanks a lot!

Hi,
>
freishz wrote:
> What is the Effect of Updating Database statistics to program's performance?
update the statistics the optizer uses for making an execution plan.
The statistics contains values like:
table statistics:
- nr of rows of the table
- nr ob blocks / pages of the table
- nr of empty blocks / pages
index statistics:
- nr of distinct keys in the index
- nr of leaf pages of the index
- clustering factor of the index
- height (levels) of the index
column statistics:
- nr of distinct values for a (indexed) column
- low value and high value for a (indexed) column
>
freishz wrote:
> Will the program run's faster after the update/
with updated statistics the runtime of the program might be
- higher
- lower
- the same
it depends on the differences of the generated execution plan used after the update in
comparison with the execution plan used before the update.
In general the runtime will be the same or lower. But i have seen cases where updating
statistics lead to higher runtimes, but these are very rare.
Why are you asking this question? do you have slow sql with a inefficent execution plan?
statistics is one of many things that need to be analyzed...
Kind regards,
Hermann

Database Statistics Process slowed down

Hi Experts
The Database Statistics Process usually used to take about 2000-3000sec. Now for the past few days i am observing that the database statistic is taking 5000-6000sec.
I have checked the job logs of both the jobs, there is no difference as such.
Please let me know what could be the reason for which it is taking so much of time these days.
Regards
Akshay Chonkar

Hi,
Check in.
http://help.sap.com/saphelp_nw04/helpdata/en/80/1a6473e07211d2acb80000e829fbfe/content.htm
and look into your InfoCueb data size and % also.
See the sequence:
http://help.sap.com/saphelp_nw04/helpdata/en/bb/bdd69f856a67418962d74bfd7bd8af/content.htm
Thanks
Reddy
Edited by: Surendra Reddy on Apr 10, 2009 7:32 AM

BRCONNECT for Database Statistics

Hi,
We have oracle 9.2 database with SAP 4.6B. We use BRCONNECT (6.20) for updating database Statistics. This takes about 5 to 6 hours to complete.
Command used = brconnect -u / -c -f stats -t all -m +I -s P10 -f allsel,collect,method,precision -p 8
Could you please help, investigating the reason for such a long run?
Also, if any OSS notes need to applied.?
Please, let me know, if additional info needed..
Thanks,
Sam

Hi,
Wondering if applying OSS Note - 871455 could resolve this issue?
Is there any other command options, to avoid unnessary data collections by BRconnect could be thought of, to reduce the long runtime?
Command used:
brconnect -u / -c -f stats -t all -m +I -s P10 -f allsel,collect,method,precision -p 8
Thanks,
Sam

How to disable the timer job for "Database Statistics"

I want to disable the database statistics timer job using the powershell, but I cant find the exact name of it in the list of timer jobs.
tried
Get-SpTimerjob to manually look for it Get-SPTimerJob SPDatabaseStatisticsJobDefinitionor and also looked for staadmin name job-database-statistics
I even tried to look for it in the list of timer job definitions for a web application with no luck.
I want to disable the timerjob, so that I can run proc_DefragmentIndices on sharepoint config and SharePoint admin databases.
SELECT DB_ID() AS [sharepoint_admincontent_cab0c190-db30-4f2c-8b71-504b81d2b5d1];
GO
SELECT * FROM sys.dm_db_index_physical_stats
(1, NULL, NULL, NULL , 'DETAILED');
1 1131151075
1 1
CLUSTERED INDEX
IN_ROW_DATA 2
0 52.6315789473684
1 1131151075
1 1
CLUSTERED INDEX
IN_ROW_DATA 2
1 0
1 1131151075
2 1
NONCLUSTERED INDEX
IN_ROW_DATA
2 0
80
Thanks
Nate

Thank you Trevor,
As per this blog (http://www.houberg.com/2008/05/16/sharepoint-database-indexes-and-statistics/) it seems like
Microsoft allows this (not explicitly though)
I ran the Health Analyzer rule for "Databases used by SharePoint have fragmented Indexes" for all servers.
I am still seeing a lot of cluster and non clustered indexes having avg_fragmentation_in_percent
> 60%.
SELECT * FROM sys.dm_db_index_physical_stats (7, NULL, NULL, NULL , 'DETAILED');
I finally thought that I should rebuild the indexes to fix the issue, but please suggest if that is not the correct approach to resolve the high fragmented indexes.
thanks
Nate

Database Statistics

Hello,
Can some one provide me the procedure and process how to do the Database Statistics for COPA tables.
I tried looking for the same in the SDN forum but couldn't found any links.
Thanks in Advance,
Kumar

Hi Kumar,
well, just like you do it for the other tables...
Either via transaction DB20 or use the BRTOOLS.
Schedule a update statistics job in DB13 or call brconnect directly on the command line:
e.g.
brconnect -u / -c -f stats -t COPA
You may have a look into the documentation and this note:
<a href="http://service.sap.com/sap/support/notes/588668">#588668 - FAQ: Database statistics</a>
<a href="http://help.sap.com/saphelp_nw70/helpdata/en/88/fce73a86e99c77e10000000a114084/frameset.htm">SAP Docu: Update Statistics with BRCONNECT</a>
KR Lars

Maintaining database statistics

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