we have issue connecting tableau prep 64 bit to database 12c on windows 10 64 bit , i installed tableau prep 64 latest version with the Oracle driver for table prep 64
but when try connection :
An error occurred while communicating with Oracle.
Detailed Error Message
Error encountered while loading C:\Program Files\Tableau\Tableau Prep 2018.3\resources\app\tableau-1.3\build\Release-x64\oci.dll
Unable to connect to the server "tdb.anabeeb.com". Check that the server is running and that you have access privileges to the requested database.
i checked the OCI.dll is exist on the above place
the tableau desktop worked fine and connected with the same database (where we installed the oracle driver for table desktop)
I have the same problem.
But, I think its a problem with a build of windows 10.
With build 16299 tableau prep works fine.
And with build 17134 I have the same error message.
And tableau desktop works fine on the both builds.