在使用EXP工具进行导出备份或迁移数据的时候有时会报很多的“EXP-00091: Exporting questionable statistics”错误,具体的现象和处理方法请观看……
1.问题现象
[oracle@RH207 exp]$ exp test/test file=test.dmf log=test.log
……忽略……
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
. . exporting table SNP_TXT 6345 rows exported
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
. . exporting table SNP_TXT_CROSSR 1019 rows exported
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
EXP-00008: ORACLE error 1013 encountered
ORA-01013: user requested cancel of current operation
EXP-00056: ORACLE error 1403 encountered
……忽略……
2.处理方法
指定Linux系统的NLS_LANG环境变量为数据库的数据集
1)查询数据库的字符集(方法很多只用一种)
SQL> select userenv('language') from dual;
USERENV('LANGUAGE')
----------------------------------------------------
AMERICAN_AMERICA.WE8ISO8859P1
2)设置Linux操作系统的NLS_LANG环境变量
[oracle@RH207 exp]$export NLS_LANG=AMERICAN_AMERICA.WE8ISO8859P1
Window系统的环境变量的修改方法是:
C:\>set NLS_LANG=AMERICAN_AMERICA.WE8ISO8859P1
3.OK,处理完成,在进行EXP导出操作就不会报这个错误了
本文来自博客园,作者:茄子_2008,转载请注明原文链接:https://www.cnblogs.com/xd502djj/archive/2010/09/27/1837064.html