Data virtualization is a technique that allows organizations to access and integrate live data from diverse sources in their enterprise databases, reducing complexity and ensuring up-to-date information. It bridges the gap between data silos, promoting efficient and holistic data management, and can be achieved through various methods such as Linked Server in SQL Server, MySQL Remoting, and TDS foreign data wrappers. These solutions enable unified querying, federated data access, real-time integration, and data aggregation, and can connect to a wide range of data sources, including SaaS, big data, and NoSQL sources. By using CData connectivity solutions, organizations can establish connections to over 250 supported data sources and integrate them into their SQL Server, MySQL or PostgreSQL environment, making it easier to access live data from diverse sources.