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It is data-access technology, primarily disconnected and designed to provide efficient, scalable dataaccess. The disconnected data is represented within aDataSetobject. A data provider is a set of classes that provide access to databases. The main components of data provider are: Connection Command DataReader DataAdapter Visual Studio .NET includes two data providers: SQL Data Provider OleDb Data Provider Two additional data providers are included in Visual Studio .NET 2003: ODBC Data Provider Oracle Data Provider