Full Export Fails With Error ORA-1406 When Exporting 11g Database

(Doc ID 553993.1)

Last updated on SEPTEMBER 24, 2013

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 9.2 to 10.2]
Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.
***Checked for relevance on 24-Sep-2013***


Full database export using traditional exp utility version fails with errors EXP-8 ORA-1406 during exporting roles from a database version 11.1.0.x.

Example exp command:

exp system/password@db11g file=exp_full.dmp log=exp_full.log full=y

Example exp output/logging:

Export: Release - Production on Tue Feb 5 10:07:54 2008
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Export done in WE8MSWIN1252 character set and AL16UTF16 NCHAR character set
About to export the entire database ...
. exporting tablespace definitions
. exporting profiles
. exporting user definitions
. exporting roles
EXP-00008: ORACLE error 1406 encountered
ORA-01406: fetched column value was truncated
EXP-00000: Export terminated unsuccessfully

The statement that fails with ORA-1406 is:


The problem affects all the exp utilities with release lower than 11g.


Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms