expdp时出现错误：ora-39006: internal error
[oracle@  ~]$ expdp admin/admin tables=studentinfo,teacherinfo directory=dpump_dir3 dumpfile=info.dmp content=all
export: release 10.2.0.1.0 - production on tuesday, 25 may, 2010 18:23:02
copyright (c) 2003, 2005, oracle.  all rights reserved.
connected to: oracle database 10g enterprise edition release 10.2.0.1.0 - production
with the partitioning, olap and data mining options
ora-39006: internal error
ora-39213: metadata processing is not available
网上查了下，解决方法如下描述：
cause: the data pump could not use the metadata api. typically, this is caused by the xsl stylesheets not being set up properly.
action: connect as sysdba and execute dbms_metadata_util.load_stylesheets to reload the stylesheets.
执行如下：
[oracle@  ~]$ sqlplus / as sysdba
sql*plus: release 10.2.0.1.0 - production on tue may 25 18:25:26 2010
copyright (c) 1982, 2005, oracle.  all rights reserved.
connected to:
oracle database 10g enterprise edition release 10.2.0.1.0 - production
with the partitioning, olap and data mining options
sql> execute dbms_metadata_util.load_stylesheets;
pl/sql procedure successfully completed.
，