Linux系统下导出ORACLE数据库出现Exporting questionable statistics.错误 处理
环境:A机器和B机器都是LINUX系统,但由于B机器已经空间不足,所以停掉不停操作数据库的服务后 ,准备在A机器进行导出操作。导出语句 exp user/password@sid file=0320.dmp
导出过程中不停出现Exporting questionable statistics.的错误。
上网一查,都说是字符集问题。
使用语句查看数据库的字符集。
select *from nls_database_parameters t where t.parameter='NLS_CHARACTERSET';
或
selct *from v$nls_parameters where parameter='NLS_CHARACTERSET';
得到的结果是一样的,A和B机器都是ZHS16GBK。奇怪了,为什么不行?死心不息,再看了一下A机器的系统字符集,发现用的是简体中文,会不会就是这个问题?
再在A机器上使用
export NLS_LANG=AMERICAN_AMERICA.ZHS16GBK
再进行导出就没错误了。
原来是系统的字符集不对,而不是ORACLE的字符集不对。

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