ORA-12516: TNS:listener could not find available handler with matching protocol stack
Cause: None of the known and available service handlers for the given SERVICE_ NAME support the client s protocol stack: transport, session, and presentation protocols.
Action: Check to make sure that the service handlers (e.g. dispatchers) for the given SERVICE_NAME are registered with the listener, are accepting connections, and that they are properly configured to support the desired protocols.
Cause: None of the known and available service handlers for the given SERVICE_ NAME support the client s protocol stack: transport, session, and presentation protocols.
Action: Check to make sure that the service handlers (e.g. dispatchers) for the given SERVICE_NAME are registered with the listener, are accepting connections, and that they are properly configured to support the desired protocols.
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