EXP-00091: Exporting questionable statistics
在使用EXP工具進行匯出備份或遷移資料的時候有時會報很多的“EXP-00091: Exporting questionable statistics”錯誤,
處理方式如下:
1.問題現象
[oracle@node1]$ exp test/test file=/home/oracle/test20141104.dmp log=/home/oracle/test20141104.log buffer=67108864
……忽略……
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
. . exporting table test 12 rows exported
EXP-00091: Exporting questionable statistics.
. . exporting table users 129 rows exported
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
……忽略……
2.處理方法
指定Linux系統的NLS_LANG環境變數為資料庫的資料集
1)查詢資料庫的字符集(方法很多隻用一種)
SQL> select userenv('language') from dual;
USERENV('LANGUAGE')
----------------------------------------------------
AMERICAN_AMERICA.WE8ISO8859P1
2)設定Linux作業系統的NLS_LANG環境變數
[oracle@node1]$ $export NLS_LANG=AMERICAN_AMERICA.WE8ISO8859P1
Window系統的環境變數的修改方法是:
C:\>set NLS_LANG=AMERICAN_AMERICA.WE8ISO8859P1
3.OK,處理完成,在進行EXP匯出操作就不會報這個錯誤了.
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