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一.出现EXP-00091错误

[oracle@localhost tmp]$ exp "'/ as sysdba'" tables=testxuchao.TAB_XN_PY_DICT

> file=/tmp/xifenfei.dmp log=/tmp/xifenfei.log

Export: Release 9.2.0.4.0 - Production on Mon Jan 16 16:02:37 2012

Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.

Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production

With the Partitioning, OLAP and Oracle Data Mining options

JServer Release 9.2.0.4.0 - Production

Export done in US7ASCII character set and AL16UTF16 NCHAR character set

server uses ZHS16GBK character set (possible charset conversion)

About to export specified tables via Conventional Path ...

Current user changed to TESTXUCHAO

. . exporting table TAB_XN_PY_DICT 25433 rows exported

EXP-00091: Exporting questionable statistics.

EXP-00091: Exporting questionable statistics.

Export terminated successfully with warnings.

当环境变量和数据库的不一致，在导出统计信息时候，会报EXP-00091错误。

二.查看NLS相关参数

[oracle@localhost tmp]$ echo $NLS_LANG

AMERICAN

SQL> col value for a30

SQL> select parameter,value from nls_database_parameters

2 where parameter like '%CHARACTERSET%';

PARAMETER VALUE

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

NLS_CHARACTERSET ZHS16GBK

NLS_NCHAR_CHARACTERSET AL16UTF16

三.解决方法

1.设置NLS_LANG为NLS_CHARACTERSET

[oracle@localhost tmp]export NLS_LANG=american_america.ZHS16GBK

[oracle@localhost tmp]$ exp "'/ as sysdba'" tables=testxuchao.TAB_XN_PY_DICT

> file=/tmp/xifenfei.dmp log=/tmp/xifenfei.log

Export: Release 9.2.0.4.0 - Production on Mon Jan 16 16:08:10 2012

Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.

Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production

With the Partitioning, OLAP and Oracle Data Mining options

JServer Release 9.2.0.4.0 - Production

Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set

About to export specified tables via Conventional Path ...

Current user changed to TESTXUCHAO

. . exporting table TAB_XN_PY_DICT 25433 rows exported

Export terminated successfully without warnings.

2.使用statistics=none

[oracle@localhost tmp]$ exp "'/ as sysdba'" tables=testxuchao.TAB_XN_PY_DICT

> file=/tmp/xifenfei.dmp log=/tmp/xifenfei.log statistics=none

Export: Release 9.2.0.4.0 - Production on Mon Jan 16 16:08:53 2012

Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.

Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production

With the Partitioning, OLAP and Oracle Data Mining options

JServer Release 9.2.0.4.0 - Production

Export done in US7ASCII character set and AL16UTF16 NCHAR character set

server uses ZHS16GBK character set (possible charset conversion)

About to export specified tables via Conventional Path ...

Current user changed to TESTXUCHAO

. . exporting table TAB_XN_PY_DICT 25433 rows exported

Export terminated successfully without warnings.

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