السلام عليكم
ارجوا مساعدتي في حل هذه المشكلة اود ان اتصل بقاعدة بيانات اوراكل 9i
على مخدم بعيد لكن تظهر لدي هذه المشكلة.
ORA-12514: TNS:listener could not resolve SERVICE_nAME given in connect descriptor

ORA-12514: TNS:listener does not currently know of service requested in connect descriptor

Cause: 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.
Action:-

- 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

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جرب ما هو مقترح فى ال Action ، و أن لن تفلح الحلول قم بعمل نسخ لملف ال TNSNAMES.ORA من الجهاز الخادم الى الاجهزة التابعة .... و أعد التشغيل ، و قولى على النتيجة .