EXP-00091 Exporting questionable statistics

I got ” EXP-00091 Exporting questionable statistics ”  error in Oracle database.

 

EXP-00091 Exporting questionable statistics

 

Details of error are as follows.

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.



 

 

Exporting questionable statistics

This EXP-00091 errors are related with the 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 w

 

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.

 

You can execute exp command with “statistics=none” option to skip the statistics collection and bypass the error. For instance:

exp mehmet/deveci schemas=mehmet file=mehmet.dmp log=scott.log statistics=none

 

Do you want to learn Oracle Database for Beginners, then read the following articles.

Oracle Tutorial | Oracle Database Tutorials for Beginners ( Junior Oracle DBA )

 

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About Mehmet Salih Deveci

I am Founder of SysDBASoft IT and IT Tutorial and Certified Expert about Oracle & SQL Server database, Goldengate, Exadata Machine, Oracle Database Appliance administrator with 10+years experience.I have OCA, OCP, OCE RAC Expert Certificates I have worked 100+ Banking, Insurance, Finance, Telco and etc. clients as a Consultant, Insource or Outsource.I have done 200+ Operations in this clients such as Exadata Installation & PoC & Migration & Upgrade, Oracle & SQL Server Database Upgrade, Oracle RAC Installation, SQL Server AlwaysOn Installation, Database Migration, Disaster Recovery, Backup Restore, Performance Tuning, Periodic Healthchecks.I have done 2000+ Table replication with Goldengate or SQL Server Replication tool for DWH Databases in many clients.If you need Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS Consultancy and Training you can send my email adress [email protected].-                                                                                                                                                                                                                                                 -Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS ve linux Danışmanlık ve Eğitim için  [email protected] a mail atabilirsiniz.

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