ORA-12541

C:\>sqlplus

SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jun 22 16:04:06 2007

Copyright (c) 1982, 2005, Oracle. All rights reserved.

Enter user-name: sys/babu@keystone as sysdba
ERROR:
ORA-12541: TNS:no listener

C:> Set ORACLE_SID=KEYSTONE

C:\>sqlplus "/as sysdba"

SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jun 22 16:04:24 2007

Copyright (c) 1982, 2005, Oracle. All rights reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options

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