ORA-12514 TNS:listener does not currently know of service requested in connect descriptor
This is an Oracle Database Server Message. This can be generated by the Oracle Database when running any Oracle program.
What is the cause of ORA-12514 from Oracle 10g ?
The listener received a request to establish a connection to a database or other service. The connect descriptor received by the listener specified a service name for a service (usually a database service) that either has not yet dynamically registered with the listener or has not been statically configured for the listener. This may be a temporary condition such as after the listener has started, but before the database instance has registered with the listener.
How to deal with ORA-12514 from Oracle 10g ?
- Wait a moment and try to connect a second time.
- Check which services are currently known by the listener by executing: lsnrctl services <listener name>
- Check that the SERVICE_NAME parameter in the connect descriptor of the net service name used specifies a service known by the listener.
- If an easy connect naming connect identifier was used, check that the service name specified is a service known by the listener.
- Check for an event in the listener.log file.
Contacting Oracle support services ?
Some messages recommend contacting Oracle Support Services to report a problem. Please go here for more information : Oracle Support.
Linked Error Messages
- ORA-12508 TNS:listener could not resolve the COMMAND given
- ORA-12509 TNS:listener failed to redirect client to service handler
- ORA-12510 TNS:database temporarily lacks resources to handle the request
- ORA-12511 TNS:service handler found but it is not accepting connections
- ORA-12513 TNS:service handler found but it has registered for a different protocol
- ORA-12515 TNS:listener could not find a handler for this presentation
- ORA-12516 TNS:listener could not find available handler with matching protocol stack
- ORA-12518 TNS:listener could not hand off client connection
- ORA-12519 TNS:no appropriate service handler found
- ORA-12520 TNS:listener could not find available handler for requested type of server
- ORA-12521 TNS:listener does not currently know of instance requested in connect descriptor
- ORA-12522 TNS:listener could not find available instance with given INSTANCE_ROLE