问题
Export: Release 11.2.0.4.0 - Production on Wed Jul 19 20:49:24 2023
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
ORA-39006: internal error
ORA-39213: Metadata processing is not available
按照提示进行操作，解决问题：
[oracle@localhost-a ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on Wed Aug 31 17:44:22 2016
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> execute dbms_metadata_util.load_stylesheets;
PL/SQL procedure successfully completed.
SQL> exit