Thank you for helping,
the user on the local Oracle DB (Oracle 11) has the Role privileg "dba".
In the meantime I got i to retrieve data from the Oracle 10.2 database. It worked after I added a new Datasource (with the same connection parameters) within EA. But with Connections created by Adminstrative Tools/Data Sources, the problem remains also on the 10.2 database.
After that I created also new connection to the local database within EA, but on Oracle 11 I am not able to retrieve table information. No error message, but no tables, view are displayed.
I checked the privileges. They are the same as for the users on the Oracle 10.2, except the user on 11 additional has role "dba".
User settings on 10.2:
Role privileges: connect, resource
System privileges: debug connect session, unlimited table space
User settings on 11
Role privileges: connect, dba, resource
System privileges: debug connect session, unlimited table space
Now I can work, but it is not very comforatable, as I always have to export/import my schema from Oracle 11 to Oracle 10.2 before using EA.
In my original question I asked if EA can work on 64Bit systems, I would like to add, can EA work with Oracle 11?
Thanks a lot for support and best regards
Hattl