EXP-00091: Exporting questionable statistics.問題解決！

時間 2019-12-04

標籤 exp exporting questionable statistics 問題解決简体版

原文原文鏈接

對DBA或需使用exp,imp的普通用戶來說，在咱們作exp的過程中可能常常會遇到EXP－00091 Exporting questionable statistics.這樣的EXP信息，其實它就是exp的error message，它產生的緣由是由於咱們exp工具所在的環境變量中的NLS_LANG與DB中的NLS_CHARACTERSET不一致。oracle

問題：工具

lpding-> exp scott/scott file=/oracle/exp/scott_emp.dmp log scott_emp.log tables=empspa

Export: Release 10.2.0.1.0 - Production on Tue Jun 29 15:07:38 2010orm

Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
Export done in UTF8 character set and AL16UTF16 NCHAR character set
server uses ZHS16GBK character set (possible charset conversion)ci

About to export specified tables via Conventional Path ...
. . exporting table EMP 14 rows exported
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
Export terminated successfully with warnings.it

解決：io

SQL> select * from v$nls_parameters where parameter='NLS_CHARACTERSET';table

PARAMETER VALUE
------------------------------- ---------------------------------------------------------------------------------------------------
NLS_CHARACTERSET ZHS16GBK變量

SQL> host
$ export NLS_LANG=AMERICAN_AMERICA.ZHS16GBK
$ exp scott/scott file=/oracle/exp/scott_emp.dmp log scott_emp.log tables=emp

Export: Release 10.2.0.1.0 - Production on Tue Jun 29 15:32:08 2010

Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set

About to export specified tables via Conventional Path .... . exporting table EMP 14 rows exportedExport terminated successfully without warnings.lpding->

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