Data Access with ADO.NET - Accessing SQL Server and OLE DB from .NET
Telerik Software Academy: http://academy.telerik.com/school-academy/meetings/details/2012/01/06/desktop-applications-csharp-databases
The website and all video materials are in Bulgarian.
Data Access Models – Connected, Disconnected, ORM
ADO.NET Architecture and Data Providers
Accessing SQL Server (Connected Model)
Using SqlConnection, SqlCommand and SqlDataReader
Accessing Other Databases
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