In this training, Guido Verbraak explores the concept of Federation in DB2, which allows seamless access to multiple heterogeneous databases (like Oracle, SQL Server, PostgreSQL, MongoDB, etc.) as if they were local. The session covers the components of a federated system—such as wrappers, server definitions, user mappings, and nicknames—and explains how to set up and configure a Federation server step by step. Key use cases include real-time data access, integration across platforms, mergers, and cloud connectivity. The training also discusses security best practices, performance considerations, and common challenges when working with remote data sources.