Database Connectivity

Dear All,

 

I am a novice user in oracle.

 

I just installed oracle database 10g successfully.When I tried to connect to database with the following code snipet but I could not..

 

I just suplied the password that I set during installation.

 

Can you please share your experience so that I can resolve my problem..

 

 

C:\>cd /oracle/product/10.1.0

 

 

C:\oracle\product\10.1.0>sqlplus /nolog

 

 

SQL*Plus: Release 10.1.0.2.0 - Production on Wed Sep 23 19:04:18 2009

 

 

Copyright (c) 1982, 2004, Oracle. All rights reserved.

 

 

SQL> connect sys as sysdba

 

Enter password:

 

ERROR:

 

ORA-12560: TNS:protocol adapter error

 

 

 

 

sajjat