The Visual Studio .NET Integrated Development Environment (IDE) was developed to integrate very well with Microsoft's SQL Server database service. The .NET Framework includes support for data in various forms, including the following:
The System.IO namespace This namespace is used to access file-based data storage.
The ADO.NET namespace A collective grouping of namespaces including System.Data , System.Data.SqlClient , and System.Data.OleDb that is used to access relational databases. ADO.NET is the successor to ADO in Microsoft's plan for universal data access.
The System.Xml namespace This namespace is used to manipulate XML data files.