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Mar 20, 2009 at 10:49 PM

not able to logging in sql prompt

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Hello,

When i try to loogin through sql prompt , i am getting the following error. Has anyone got this error before.

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Microsoft Windows [Version 5.2.3790]

(C) Copyright 1985-2003 Microsoft Corp.

C:\Documents and Settings\gpsadm>sqlplus /nolog

SQL*Plus: Release 10.2.0.2.0 - Production on Sat Mar 21 04:11:10 2009

Copyright (c) 1982, 2005, Oracle. All Rights Reserved.

SQL> connect /as sysdba

ERROR:

ORA-12560: TNS:protocol adapter error