1.导出用户下对象, exp userid=username/pass@tns owner=ocshw rows=n file=ocshw.exp log=ocshw.exp.log 报错: EXP-00091: Exporting questionable statistics
2.解决方法 sqlplus username/pass@tns SQL> select userenv('language') from dual ;
USERENV('LANGUAGE') ---------------------------------------------------- AMERICAN_AMERICA.AL32UTF8 setenv NLS_LANG AMERICAN_AMERICA.AL32UTF8 再执行的时候就OK
