SQL*Plus login

Assuming that you have a valid tnsnames.ora:

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\>sqlplus [USER]/[PASSWORD]@[DATABASE]

SQL*Plus: Release 11.2.0.1.0 Production on Jeu. Nov. 29 14:59:12 2012

Copyright (c) 1982, 2010, Oracle.  All rights reserved.


ConnectÚ Ó :
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> exit
DÚconnectÚ de Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit
Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

C:\>sqlplus [USER]/[PASSWORD]@[DATABASE] as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Jeu. Nov. 29 15:00:16 2012

Copyright (c) 1982, 2010, Oracle.  All rights reserved.

ConnectÚ Ó :
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> exit
DÚconnectÚ de Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit
Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

C:\>exit