expdp在导数据库时，发现存在以下异常

而且日志显示不完全，如下：

;;;

Export: Release 11.2.0.1.0 - Production onThu Jan 13 12:27:49 2022

Copyright (c) 1982, 2009, Oracle and/or itsaffiliates.  All rights reserved.

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Connected to: Oracle Database 11gEnterprise Edition Release 11.2.0.1.0 - 64bit Production

With the Partitioning, OLAP, Data Miningand Real Application Testing options

Starting"SYS"."SYS_EXPORT_FULL_01": "/******** AS SYSDBA" directory=expdp1 dumpfile=exp01.dmplogfile=exp.log full=y;

Estimate in progress using BLOCKS method...

Processing object typeDATABASE_EXPORT/SCHEMA/TABLE/TABLE_DATA

Total estimation using BLOCKS method: 1.635GB

Processing object typeDATABASE_EXPORT/TABLESPACE

Processing object typeDATABASE_EXPORT/PROFILE

Processing object typeDATABASE_EXPORT/SYS_USER/USER

Processing object typeDATABASE_EXPORT/SCHEMA/USER

Processing object type DATABASE_EXPORT/ROLE

Processing object typeDATABASE_EXPORT/GRANT/SYSTEM_GRANT/PROC_SYSTEM_GRANT

Processing object type DATABASE_EXPORT/SCHEMA/GRANT/SYSTEM_GRANT

Processing object typeDATABASE_EXPORT/SCHEMA/ROLE_GRANT

Processing object typeDATABASE_EXPORT/SCHEMA/DEFAULT_ROLE

Processing object typeDATABASE_EXPORT/SCHEMA/TABLESPACE_QUOTA

Processing object typeDATABASE_EXPORT/RESOURCE_COST

Processing object typeDATABASE_EXPORT/SCHEMA/DB_LINK

Processingobject type DATABASE_EXPORT/TRUSTED_DB_LINK

Processingobject type DATABASE_EXPORT/SCHEMA/SEQUENCE/SEQUENCE

Processingobject type DATABASE_EXPORT/SCHEMA/SEQUENCE/GRANT/OWNER_GRANT/OBJECT_GRANT

Processingobject type DATABASE_EXPORT/DIRECTORY/DIRECTORY

Processingobject type DATABASE_EXPORT/DIRECTORY/GRANT/OWNER_GRANT/OBJECT_GRANT

Processingobject type DATABASE_EXPORT/CONTEXT

Processingobject type DATABASE_EXPORT/SCHEMA/PUBLIC_SYNONYM/SYNONYM

Processingobject type DATABASE_EXPORT/SCHEMA/SYNONYM

原因为客户端与数据库的字符集设置不一致导致

查询客户端字符集：

SQL> show parameter nls_lan

NAME                                 TYPE                   VALUE

---------------------------------------------------------- --------------------

nls_language                         string                 AMERICAN

查询数据库字符集

SQL> select * fromnls_database_parameters where parameter='NLS_CHARACTERSET';

PARAMETER                 VALUE

-------------------------------------------------------

NLS_CHARACTERSET          AL32UTF8

设置客户端字符集

C:\Users\Administrator>set NLS_LANG=american_america.AL32UTF8

此后再来执行导出操作，无异常发生，而且导出日志也能完全显示。