操作系统：soalris10 数据库版本：9i 日期：2013-2-19 问题： 使用exp导出时，出现EXP-00091 Exporting questionable statistics错误 分析: [cce] [oracle10g@ ~]$ oerr exp 00091 00091, 00000, "Exporting questionable statistics." // *Cause: Export was able export statistics, but the statistics may not be // usuable. The statistics are questionable because one or more of // the following happened during export: a row error occurred, client // character set or NCHARSET does not match with the server, a query // clause was specified on export, only certain partitions or // subpartitions were exported, or a fatal error occurred while // processing a table. // *Action: To export non-questionable statistics, change the client character // set or NCHARSET to match the server, export with no query clause, // export complete tables. If desired, import parameters can be // supplied so that only non-questionable statistics will be imported, // and all … [Read more...]