在客户的oracle 10.2.0.1环境下要准备进行迁移数据库，但是执行EXPDP的时候提示报错
ORA-39006: internal error
ORA-39213: Metadata processing is notavailable
使用ORACLE用户，查看ORA-39213 具体内容：
oerr ora 39213
39213, 00000, "Metadata processing isnot available"
// *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 executedbms_metadata_util.load_stylesheets
// to reload the stylesheets.
根据提示，按如下操作
SQL> conn / as sysdba;
Connected.
SQL> executesys.dbms_metadata_util.load_stylesheets;
PL/SQL procedure successfully completed.
之后再执行EXPDP就不再出现错误了，实际测试对在用的生产业务没有影响，可以放心使用
