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NET provides consistent access to data sources such as SQL Server and XML, and to data sources exposed through OLE DB and ODBC. NET to connect to these data sources and retrieve, handle, and update the data that they contain. NET separates data access from data manipulation into discrete components that can be used separately or in tandem. Those results are either processed directly, placed in an ADO. Data.dll, and are integrated with the XML classes found in System. For sample code that connects to a database, retrieves data from it, and then displays that data in a console window, see ADO.