8 Replies Latest reply: Apr 23, 2013 7:43 AM by EdStevens RSS

    not getting conneted to database.


      Microsoft Windows XP [Version 5.1.2600]
      (C) Copyright 1985-2001 Microsoft Corp.

      Recovery Manager: Release - Production on Thu Mar 28 16:06:24 2013

      Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.

      RMAN> connect target /

      RMAN-00571: ===========================================================
      RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
      RMAN-00571: ===========================================================
      ORA-12638: Credential retrieval failed


      pls tel me what could be the reson.
      i have changed the listener.ora and tnsnames.ora and added my ip addresss initial my domain addresss was written in host field , i have also tried localhost.
      but i get same message.

      and from sqldevlopter i get

      An error was encountered performing the requested operation:

      Listener refused the connection with the following error:
      ORA-12505, TNS:listener does not currently know of SID given in connect descriptor

      Vendor code 12505

      yous sincerely