oracle 11g exp 挂起

Question

尝试使用以下命令从 Oracle 11g 数据库导出架构时

exp userid=EA/@ASID file=c:\m\ea.dmp

它在永远卡住之前开始导出相当多的表:

...
EXP-00091: Fragliche Statistiken werden exportiert.
. . Export der Tabelle                T_SCENARIOTYPES          3 Zeilen exportiert
EXP-00091: Fragliche Statistiken werden exportiert.
. . Export der Tabelle                 T_SECUSERGROUP          6 Zeilen exportiert
. . Export der Tabelle            T_SECUSERPERMISSION          2 Zeilen exportiert
. . Export der Tabelle    

             T_SNAPSHOT

架构可用，表 T_SNAPSHOT 可访问，并在 SQL Developer 中显示(乍一看)合理的内容

有什么想法吗？提前谢谢!

Answer 1

The EXP-00091 Exporting questionable statistics error happens when you export table data with its related optimizer statistics, and Oracle cannot verify the currency of these statistics. When CBO statistics are created/updated with dbms_stats, the time is noted, but it's always a good idea not to export statistics since they should be recalculated after import.

You can remove the EXP-00091 error by exporting with statistics="none" or by setting the client character set (e.g. export NLS_LANG=AMERICAN_AMERICA.WE8ISO8859P1).

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