12c and export/import from a lower version
There is a serious problem with export/import utilities between versions.
The first command, executed on Oracle 11.2.0.4, Linux x86_64 was:
[oracle@oradb tmp]$ expdp system directory=tmp dumpfile=oe.dmp schemas=oe
logfile=oe.log
Directory tmp was created as /tmp
Result was the following:
Export: Release 11.2.0.4.0 - Production on Mon Jul 28 22:57:03 2014
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights
reserved.
Password:
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
Starting "SYSTEM"."SYS_EXPORT_SCHEMA_01": system/******** directory=tmp
dumpfile=oe.dmp schemas=oe logfile=oe.log