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I am looking to connect analysis services to an oracle database, and when I hit Process in AS, it gives me a generic Failed to save modifications to the server. Error returned: 'OLE DB or ODBC error: [DataSource.Error] Oracle: ORA-12154: TNS:could not resolve the connect identifier specified.

Things I've tried:

  • When I create the tables in VS2017, the connection works
  • When I do a tnsping from the command line, that works
  • I replaced all of the default tnsnames.ora files in ./app with the one that I know works (its what the TNS_ADMIN env variable is set to

I don't see where the location of the actual utilities used by the service are detailed, so I can't test it using those.

How can I make SSAS use the tnsnames.ora file that I need?

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How can I make SSAS use the tnsnames.ora file that I need?

The best answer is don't bother. Use the Easy Connect naming method, and bypass the TNSNAMES.ORA file entirely.

Alternatively you can set the TNS_ADMIN environment variable to the folder containing your TSNNAMES.ORA file and reboot your server for the SSAS service to see get the changed environment.

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  • This does look easier. I have special characters in my password (and no ability to change the password to the account). Is there a way to escape them? For what it's worth, I did reboot the server and still no dice.
    – soandos
    Mar 22, 2018 at 12:06

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