Thank you for the information. Does Tableau support XMLA or MDX? If either is true, I think we can use "Simba XMLA Connector for Oracle OLAP" to connect Tableau through to Oracle OLAP.
Our current setup is Tableau & Micrsoft SSAS cubes, and we want to move to Tableau & Oracle OLAP cubes.
Tableau supports MDX. Hopefully, this works for you!