ORA-12560 on win server 2008 R2

Question

I have an oracle DB 11.2 running on win server 2008..
I can connect to a DB, but when I need to make some changes locally, it's not possible.
so:
- the DB and listener are running as a local system account
- I'm loggin into as a local admin (Administrator/pwd)..
- ORACLE_SID has been set in Control Panel --> system (for all users)
- tnsping locally is running OK
- lsnrctl status LISTENER returns no error
- sqlnet.ora has been set:
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES)
- there are no remote_listeners
pls, help :)

Answer 1

846417 wrote:
C:\Users\Administrator>sqlplus / as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on Fri Apr 8 16:21:49 2011
Copyright (c) 1982, 2010, Oracle. All rights reserved.
ERROR:
ORA-12560: TNS:protocol adapter errorLet's stick to the 12560.
Is the OracleService<sid> windows service started?
If started, make sure ORACLE_SID (that sqlplus looks up via its registry settings, if not overridden by env) is correct:
C:\Users\Test>set ora
Environment variable ora not defined
C:\Users\Test>set oracle_sid=xe1
C:\Users\Test>sqlplus / as sysdba
SQL*Plus: Release 11.2.0.2.0 Beta on Fr Apr 8 13:09:52 2011
Copyright (c) 1982, 2010, Oracle.  All rights reserved.
ERROR:
ORA-12560: TNS:protocol adapter error
Enter user-name:
C:\Users\Test>set oracle_sid=xe
C:\Users\Test>sqlplus / as sysdba
SQL*Plus: Release 11.2.0.2.0 Beta on Fr Apr 8 13:10:01 2011
Copyright (c) 1982, 2010, Oracle.  All rights reserved.
Connected to:
Oracle Database 11g Express Edition Release 11.2.0.2.0 - BetaEdited by: orafad on Apr 8, 2011 1:11 PM
Edited by: orafad on Apr 8, 2011 5:27 PM