Teach Old Data New Tricks with the Fully Loaded Advances in ADO.NET 2.
The Microsoft® .NET Framework 2.0 delivers an updated ADO.NET that will streamline your data access development efforts. The ADO.NET team has worked with both the System.Xml team and the SQL Server™ team to provide a consistently rich developer experience, crossing technology boundaries from ADO.NET to XML and back. This will all be apparent as you dig into ADO.NET 2.0. There are improvements on so many fronts that you will certainly be pleased.
Rather than attempt to list every new and updated feature of ADO.NET 2.0, I will discuss in detail some of the more interesting improvements and focus on performance and flexibility.