Hi All, Could someone help me out here to fix this issue? I restarted the listener but no luck. C:\>sqlplus /nolog SQL*Plus: Release 10.1.0.2.0 - Production on Tue Aug 24 15:50:51 2004 Copyright (c) 1982, 2004, Oracle. All rights reserved. SQL> connect / as sysdba Connected. SQL> show parameter service_name NAME TYPE VALUE ------------------------------------ ----------- -------------------------- service_names string orcl SQL> tnsnames.ora ============ # tnsnames.ora Network Configuration File: C:\oracle\product\10.1.0\Db_1\network\admin\tnsnames.ora # Generated by Oracle configuration tools. ORCL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = tamizh)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl) ) ) C:\>sqlplus system/welcome@orcl SQL*Plus: Release 10.1.0.2.0 - Production on Tue Aug 24 15:49:32 2004 Copyright (c) 1982, 2004, Oracle. All rights reserved. ERROR: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------