The CData Query Federation Driver, allows you to federate and aggregate data across drivers as a single database connection. You can combine the Query Federation Driver with other CData JDBC Drivers or CData ADO.NET Providers to access all your SaaS, Big Data, and NoSQL sources as if they were one database. You can query or update data from a single source and even execute complex queries that JOIN data across sources.
In this article, we will walk through the Query Federation Driver configuration to connect to multiple data sources. We will be looking at the JDBC drivers for Salesforce, MySQL, and Excel, but the principles