Cirro
"The Cirro Data Hub, provides a single point-of-access for Tableau users to build powerful federated queries without having to worry about the complexities of underlying connections, data movement, join criteria, and analysis across across multiple databases. It seamlessly integrates Hadoop, NoSQL and/or SaaS sources with traditional data sources enabling self-service data exploration and analysis.
Unlike data virtualization products, Cirro’s Data Hub & Data Agents use interconnections between data sources, allowing for point-to-point connectivity of data. Interfacing with the Cirro UDN, Tableau visualization tools make exploring and discovering data far more efficient. As a complete solution, Cirro Data Hub offers a revolutionary approach that is fundamentally different from ETL and virtualization."