ORA-12514 :Connecting Via Oracle Net While Database is Down (Doc ID 834766.1)

Last updated on AUGUST 24, 2017

Applies to:

Oracle Net Services - Version 9.2.0.1 to 12.1.0.2 [Release 9.2 to 12.1]
Information in this document applies to any platform.
This problem can occur on any platform.

Symptoms

Attempting to connect remotely to an instance that is not started using a privileged account.  This might be necessary to start up the database remotely or via the listener.  The following error is returned:

SQL> connect sys/password@ORCL as sysdba
ERROR:
ORA-12514: TNS:listener does not currently know of service requested in connect descriptor



The TNS connect string used is in the following form:

ORCL =
   (DESCRIPTION =
       (ADDRESS_LIST =
          (ADDRESS = (PROTO = TCP)(HOST = myhost)(PORT = 1521))
      )
  (CONNECT_DATA =
      (SERVICE_NAME = ORCL.ORACLE.COM)
   )
  )

Changes

It is likely the database has been shutdown since the last successful connection via the listener.

Cause

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