Error in Export "EXP-00091: Exporting questionable statistics "

when i execute export on server having RAC DB R10g R2 on Linux 4 it return error , nobody has changed it's characterset .
how to fix this error, CAN THIS ERROR CAUSE BIG DESASTER TO DB IN FUTURE
C:\>exp hst/hst file='/home/oracle/expdat.dmp
About to export specified users ...
. exporting pre-schema procedural objects and actions
. exporting foreign function library names for user NRI
. exporting PUBLIC type synonyms
. exporting private type synonyms
. exporting object type definitions for user NRI
About to export NRI's objects ...
. exporting database links
. exporting sequence numbers
. exporting cluster definitions
. about to export NRI's tables via Conventional Path ...
. . exporting table TABLEA 0 rows exported
EXP-00091: Exporting questionable statistics.
. . exporting table TABLEB 0 rows exported
EXP-00091: Exporting questionable statistics.
Kindly Help be ho can i fix this error
Thanks in advance

Hello,
You wrote:
CAN THIS ERROR CAUSE BIG DESASTER TO DB IN FUTUREThe error message EXP-00091: Exporting questionable statistics just warns you that the statistics
were exported but these statistics may be not useable.
So, if you have to import these Tables, you may have to collect again the statistics of these Tables.
It's not relative to this problem but why don't you use DataPump (expdp/impdp) ?
Please find enclosed a link about DataPump, it's much more powerful than the classical export/import:
[http://download.oracle.com/docs/cd/B19306_01/server.102/b14215/dp_overview.htm#i1009203]
Best regards,
Jean-Valentin
Edited by: Lubiez Jean-Valentin on Feb 6, 2010 12:56 PM

Similar Messages

EXP-00091: Exporting questionable statistics

Dear Friend,
I am using Linux Database and Windows database, the problem now I am facing while exporting data from Linux which is imported from windows oracle database dump file.
when I am exporting I am getting this error
EXP-00091: Exporting questionable statistics
and shows
Export terminated successfully with warnings
Now exported file I am importing from Linux to windows and getting this error
Connected to: Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.1.0 - Production
Import file: EXPDAT.DMP > c:/aa.dmp
Enter insert buffer size (minimum is 8192) 30720>
IMP-00010: not a valid export file, header failed verification
IMP-00000: Import terminated unsuccessfully
Regards,
Oracle User

Hi,
>>because I exported dump from oracle10G
Then you use the exp 10g version, right ? To move data DOWN a version(s), you need to export using that lower versions EXP tool and using IMP that lower version tool.
Take a look at this below?
Exporting Data From Release 10.2 and Importing Into Earlier Releases
Export From      Import To      Use Export Utility For      Use Import Utility For
Release 10.2      Release 10.2      Release 10.2           Release 10.2
Release 10.2      Release 10.1      Release 10.1           Release 10.1
Release 10.2      Release 9.2      Release 9.2           Release 9.2
Release 10.2      Release 9.0.1      Release 9.0.1           Release 9.0.1
Release 10.2      Release 8.1.7      Release 8.1.7           Release 8.1.7
Release 10.2      Release 8.0.6      Release 8.0.6           Release 8.0.6
>>EXP-00091 is still remain.. you said I have to chang ethe NLS but I am new to linux
I think that there is no problem ... but you can use also as I said before the statistics=none clause, but remember that you need to use the exp 9i version ...
Cheers

Error while exporting a table - EXP-00091

I am doing an export of a table. The table has 1000838 rows. After the export is completed,
when I checked the log - it said
Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production
With the Partitioning option
JServer Release 9.2.0.4.0 - Production
Export done in US7ASCII character set and AL16UTF16 NCHAR character set
About to export specified tables via Conventional Path ...
. . exporting table FIDA_LABEL 1000838 rows exported
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
Export terminated successfully with warnings.
I looked in the Oracle error messages document and found this out ---
EXP-00091 Exporting questionable statistics
Cause: Export was able to export statistics, but the statistics may not be useable. The statistics are questionable because one or more of the following happened during export: a row error occurred, client character set or NCHARSET does not match with the server, a query clause was specified on export, only certain partitions or subpartitions were exported, or a fatal error occurred while processing a table.
Action: To export non-questionable statistics, change the client character set or NCHARSET to match the server, export with no query clause, or export complete tables. If desired, import parameters can be supplied so that only non-questionable statistics will be imported, and all questionable statistics will be recalculated.
And this how my export command looks like -
exp vincent/passphr query=\"where state in $\'MD\',\'CA\',\'WI\'$\" file=$EXPDIR/fida_label_9i.dmp tables=vincent.fida_label
log=$LOGDIR/fida_label_exp.log
Ofcourse, I am using the query clause because I really need to and it has always worked when we were in the Oracle 8i environment. We recently moved to the 9i. And this happens in this 9i version...
And I certainly do not want to specify the import parameters to ignore the questionable statistics as no changes are desired in that area...(my hands are tied..).
What could " a fatal error occurred while processing a table " mean? And how can this be traced and troubleshooted ? Or how can I find out if any row errors occurred ? And if required, how do I check the character sets and other likes ?? (I have no idea in this area)
Thanks. All I needed was to get around this error. Your suggesions/responses would be highly appreciated

What version of Oracle 9i are you using? Do you have a standard 'NLS_LANG' environment variable set on client's machines? Or do you set it to different values on different machines?
Here is one of way you could get around it.
Could you specify the export parameter 'STATISTICS=NONE' while exporting the table data?
Try this and see.
If this is successful, you could use the import utility as usual. You could always compute or estimate statistics on the table after import.

How to resolve EXP-00056: ORACLE error 19206 encountered during an export.

Hi,
I am facing the problem while exporting the user in ORACLE 9i. It is showing the following error message's
EXP-00056: ORACLE error 19206 encountered
ORA-19206: Invalid value for query or REF CURSOR parameter
ORA-06512: at "SYS.DBMS_XMLGEN", line 83
ORA-06512: at "SYS.DBMS_METADATA", line 353
ORA-06512: at "SYS.DBMS_METADATA", line 418
ORA-06512: at "SYS.DBMS_METADATA", line 457
ORA-06512: at "SYS.DBMS_METADATA", line 1181
ORA-06512: at "SYS.DBMS_METADATA", line 1162
ORA-06512: at line 1
I have tried in the below way to solve the above issue.
I have logged in to sql+ sheet : sys/sys@esmr as sysdba [username/password@net service name as sysdba] and executed the query " $ora92/rdbms/admin/catmeta.sql "
But still I am unable to export the database user.Still it is showing me the same error. Please help me out.
Thanks so much,
Sudheer Reddy T
Edited by: 921309 on Mar 15, 2012 10:24 PM

Dear User,
Please check the below Document for details regarding your error.
ORA-19206 EXP-56 While Taking Export (Doc ID 206313.1)
Regards...
Chetan DBA@ORACLE

EXP-00002: error in writing to export file EXP-00002:   EXP-00000: Export terminated unsuccessfully

Dear All,
<code>
. . exporting table
CDM_HIST_INFO_SERV_RES_DEF
0 rows exported
. . exporting table
CDM_HIST_INFO_SLA
0 rows exported
. . exporting table
CDM_HIST_INFO_WORKGROUP
0 rows exported
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CDM_INCIDENT2SERVICES
1040 rows exported
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CDM_INCIDENTS </code>
EXP-00002: error in writing to export file
EXP-00002: error in writing to export fileerror closing export file /archive/weeklybkp/export/loc2/sd-04-Sep-08-55.dmp
EXP-00000: Export terminated unsuccessfully
I got the above error.It only backup 2Gb after that the above error came.Please help me.
Regards,
DB.

following link can help you out.
http://arjudba.blogspot.in/2009/12/export-fails-with-exp-00002-error-in.html
Check the solution section.

EXP-00037: Export views not compatible with database version

kindly help with this error. We have already run catexp.sql but still that is not helping, we are still getting the same error.
we are exporting 8i db.
Export: Release 8.1.7.0.0 - Production on Thu Feb 21 14:34:25 2008
(c) Copyright 2000 Oracle Corporation. All rights reserved.
Connected to: Oracle8i Enterprise Edition Release 8.1.7.0.0 - Production
With the Partitioning option
JServer Release 8.1.7.0.0 - Production
EXP-00037: Export views not compatible with database version
EXP-00000: Export terminated unsuccessfully

Does this apply to you?
Error: EXP 37
Text: Export views not compatible with database version
Cause: The Export utility is at a higher version than the database version
and is thereby incompatible.
Action: Use the same version of Export utility as the database.

Direct export (exp.exe) support for japanese Multibyte and DoubleByte

Hi,
We are working on data export methods. We are trying to use oracle direct export (exp.exe) on command line using DBCS username and password. but we could not able to succeed in connecting.
in japanese we create a user "ＤＢＣＳ" and try to connect using exp.exe, however is not connecting using the below command.
C:\app\Administrator\product\11.2.0\dbhome_1\bin\exp.exe "D　B　C　S"/PASSWORD.
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This is very very urgent, request you to reply me ASAP.
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Edited by: user4568775 on Feb 19, 2013 1:20 AM

This is very very urgent, request you to reply me ASAP.First of all urgent questions are best directed to oracle support. I also answer to urgent questions but only from my coworkers and customers; however I get paid for that mostly....It also helps to post in the correct forum (one of these: https://forums.oracle.com/forums/category.jspa?categoryID=18), and be sure to add version infos as well as platform versions.
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http://docs.oracle.com/cd/E11882_01/server.112/e22490/original_export.htm#BABBHCIE
also have a look here:
http://docs.oracle.com/cd/E11882_01/server.112/e22490/part_dp.htm#i436481
you can see the parameters with a short description using
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EXP-00024: Export views not installed, please notify your DBA - Please help

Sir,
I am trying to export from a client machine.
exp system/manager@dbcon full=y file=db.dmp log=exp.logBut I am getting error,
Connected to: Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.1.0 - Production
Export done in US7ASCII character set and AL16UTF16 NCHAR character set
About to export the entire database ...
. exporting tablespace definitions
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. exporting resource costs
. exporting rollback segment definitions
. exporting database links
. exporting sequence numbers
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. exporting foreign function library names
. exporting object type definitions
EXP-00008: ORACLE error 942 encountered
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EXP-00024: Export views not installed, please notify your DBA
EXP-00000: Export terminated unsuccessfully
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regards,
Mathew

May we know the database version of your exported and imported database ? I believe that , you trying to import into lower version of database. If yes, then loging as a sys and run the script $ORACLE_HOME/rdbms/admin/catexp.sql .
hare krishna
Alok

An error occurred while attempting to export the virtual machine (0x80070050)

I was exporting several VM's from a Vhost so that i could import them into a new cluster. Four out of the five machines went off with no hitch and were exported and then imported. However one of the machines throws up an error durring the export
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Filed to copy file during export.
Failed to copy file from 'D:\path\of\vhd\VM.vhd to 'D:\path\of\export\VM.vhd': The file esists (0x80070050)"

I have found an answer to my own question after
further investigation … In hopes of helping anyone who may have a similar problem in the future....
What happened was the server has two VHD’s one is located in C:\vm\vhd\server.vhd the second was located in a different directory such as C:\vm\vhd1\server.vhd
as both vhd files were named identically when the export was attempted it tried to move both files into the same directory I assume giving the “file already exists error”.

EXP-00000: Export terminated unsuccessfully

When Im perform export it terminated unsuccessfully with bellow message,please clarify why is this
EXP-00008: ORACLE error 1555 encountered
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EXP-00000: Export terminated unsuccessfully

I'm going to assume you are running an older version of Oracle? 9i? And/or that you use manual rollback segments?
I've had that error before when running an export because my export was running for longer than the database was keeping the undo blocks that I needed to read from. Our export was running for 6 hours, so you need to ensure that it can have a read consistent view of the data as of 6 hours ago. If using automatic undo management, which I would recommend, you can set the undo_retention to 6 hours.

I got an error everytime i save/open/export

guyz,
i got this weird error when i open/save/export/close my file.
And i can the "Open recent" from the File Menu.
I tried reinstalling it several times already but still the
error is still there.
BTW, the error is like an alert box with the following
message:
Could not complete your request.
An error occurred.
Any ideas how to solve this?
thanks!
keith

Hi Venkat,
Did you use Visual Studio 2010 on your test? It is a known issue of Visual Studio 2010. Please refer to the following document. It has fix method provided by the Microsoft Web Development Tools team to work around the issue.
https://connect.microsoft.com/VisualStudio/feedback/details/552134/hresult-error-creating-timetracking-sample-web-site-project
Since the issue related to Visual Studio. I suggestion you post the question in the following forum:
http://social.msdn.microsoft.com/Forums/en-US/home?forum=Vsexpressvb
It is appropriate and more experts will assist you.
Regards,
Alisa Tang
Alisa Tang
TechNet Community Support

Error During INSTALL of Application Export File

An error is reported during INSTALL of an application that I am trying to copy (Import/Install) from a "development" Work Space into a "production" Work Space. The production (target) Work Space is on the same HTML DB instance as the development Work Space.
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EXPORT INFO -
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Again, any insights or suggestions are appreciated.

Urgently need help! I've read several other Forum messages having a related problem but none having same Install error message.
Again, my Export/Import from development Workspace to production Workspace is successful. The following error is reported when I attempt to "Install" into the production Workspace:
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Error in Export "EXP-00091: Exporting questionable statistics "

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