New Member
Posts: 1
Registered: ‎09-12-2018

PowerBI connecting to Oracle client gives error

I installed Oracle client, yet I get error when I attempt to get Oracle data into PowerBI


Please assist




Details: "Oracle: ORA-12504: TNS:listener was not given the SERVICE_NAME in CONNECT_DATA"

Here is tnsnames.ora

DLPOracle =
      (SERVICE_NAME = service_name) 

It is in directory: E:\app\client\adm.user\product\12.2.0\client_1\Network\Admin


PATH contains

E:\app\client\adm.user\product\12.2.0\client_1 E:\app\client\adm.user\product\12.2.0\client_1\bin

Community Support Team
Posts: 2,961
Registered: ‎02-06-2018

Re: PowerBI connecting to Oracle client gives error

Hi @ArtieLadie,


Perhaps you can have a look at the article below:


You may encounter serveral errors from Oracle when the naming syntax is either incorrect or not configured properly.

  • ORA-12154: TNS: could not resolve the connect identifier specified
  • ORA-12514: TNS listener does not currently know of service requested in connect descriptor
  • ORA-12541: TNS: no listener
  • ORA-12170: TNS:Connect timeout occurred
  • ORA-12504: TNS listener was not given the SERVICE_NAME in CONNECT_DATA

These errors could occur if either the Oracle client is not installed, or if it is not configured properly. If it is installed, you will want to verify the tnsnames.ora file is properly configured and you are using the proper net_service_name. You will also need to make sure that the net_service_name is the same between the machine using Power BI Desktop and the machine that is running the gateway. For more information, see Installing the Oracle Client.


In addition, please have a reference of this similar thread which has been solved.


Best Regards,


Community Support Team _ Cherry Gao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.