ORA-12514 :Connecting Via Oracle Net While Database is Down
Last updated on AUGUST 24, 2017
Applies to:Oracle Net Services - Version 18.104.22.168 to 22.214.171.124 [Release 9.2 to 12.1]
Information in this document applies to any platform.
This problem can occur on any platform.
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:
ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
The TNS connect string used is in the following form:
(ADDRESS = (PROTO = TCP)(HOST = myhost)(PORT = 1521))
(SERVICE_NAME = ORCL.ORACLE.COM)
It is likely the database has been shutdown since the last successful connection via the listener.
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