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 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release - 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
Oracle User

>>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 ...

Similar Messages

  • 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 .
    C:\>exp hst/hst file='/home/oracle/expdat.dmp
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    . 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

    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:
    Best regards,
    Edited by: Lubiez Jean-Valentin on Feb 6, 2010 12:56 PM

  • 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 - 64bit Production
    With the Partitioning option
    JServer Release - 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
    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.

  • Exp 00091

    while exporting full database like
    ]$exp file=fulldb.dmp log=result.log full=y
    user: / as sysdba
    i am getting exp 00091.
    is there any problem with this. or can i continue.
    thank you!

    Yes there is a problem with that.
    1 You didn't look up the error in the online documentation,
    and you dididn't post the error message when posting here , so others have to look up the error on your behalf . As a minimum effort in troubleshooting on your side you should ALWAYS look up the error and post the one line error text here, and there are no excuses for that.
    2 You didn't search this forum for the error
    In short: you should reconsult the Forums Etiquette post which states 'Consulting documentation is highly recommended'
    Using a search engine -what you should have done in the first place- provided me with
    Exp-0091 Exporting Questionable Statistic
    Sybrand Bakker
    Senior Oracle DBA

  • 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.
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    (c) Copyright 2000 Oracle Corporation. All rights reserved.
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    Does this apply to you?
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    Text: Export views not compatible with database version
    Cause: The Export utility is at a higher version than the database version
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    Action: Use the same version of Export utility as the database.

  • EXP-00024: Export views not installed, please notify your DBA - Please help

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    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 .
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  • EXP-00000: Export terminated unsuccessfully

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    I'm going to assume you are running an older version of Oracle? 9i? And/or that you use manual rollback segments?
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    following link can help you out.
    Check the solution section.

  • Basic Exporting Question

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    Edited by: 944768 on Apr 1, 2013 4:53 AM

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