Praveen Srivatsa discusses how SQL Server supports non-relational data like documents, images, and videos through features like XML, CLR, FileStream, and spatial data types. SQL Server can store relational and non-relational data together to enable integrated business scenarios. New data types like HierarchyID and improvements to XML and spatial data types in SQL Server 2008 help developers work with hierarchical and location-based data. SQL Server provides reliability, security, and programming interfaces for working with non-relational data alongside relational data and queries.