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Pl identify which version of Win 7 - you will require Professional or higher - http://docs.oracle.com/cd/E17781_01/install.112/e18803/toc.htm#BABGGAJA - Home version is not supported, although some have tried to install it on Home version and have been successful - that does not mean there will be no issues in using the software.
Pl also identify the exact version of "10g" - where is this datbase located ? You should be able to connect to the 10 database from XE.
What is "SSRS" ? I would suggest the latest version of SQL Developer. Why do you need a 11g XE install in the first place ? You should be able to connect to the 10g database directly using SQL Developer.
De-install instructions are here - http://docs.oracle.com/cd/E17781_01/install.112/e18803/toc.htm#CIHDDHJD - they work as advertised on supported OS versions.
I have Windows 7 Professional. The latest version of 10g. SQL Developer gives an error that it will not work without the Oracle client installed.
Thanks for the reply.
Actually its the oracle client which needs configuration. You have to tell SQLDeveloper how to communicate with a database.
SQL Developer gives an error that it will not work without the Oracle client installed.
And every server installation includes a client- it also needs configuration, usually via tnsnames.ora.
Out-of-the-box installer sets up an XE tnsalias which points to the XE installation. Host, port, ORACLE_SID or service_name have to be set in the tnsnames.ora file if you don't have OID or another oracle naming service available at your location.
And you'll still need to point the client to the naming service, in sqlnet.ora and ldap.ora files. Same location as the listener.ora and tnsnames.ora files.