ADO.NET EF

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Entity Framework In this article we consider a short description of the Entity Framework and LINQ to SQL transactional models. There are also some simple code listings illustrating different aspects of the transactional model.

dotConnect Team’s Blog » Blog Archive » Working with transactions in Entity Framework and LINQ to SQL

http://blogs.devart.com/dotconnect/transactions-in-entity-framework-and-linq-to-sql.html

Converting SQL to LINQ, Part 7: UNION, TOP, Subqueries (Bill Horst) - The Visual Basic Team

http://blogs.msdn.com/b/vbteam/archive/2008/01/08/converting-sql-to-linq-part-7-union-top-subqueries-bill-horst.aspx This post assumes you’ve read the previous posts in this series: Converting SQL to LINQ, Part 1: The Basics
http://weblogs.asp.net/scottgu/archive/2007/07/11/linq-to-sql-part-4-updating-our-database.aspx

LINQ to SQL (Part 4 - Updating our Database)

Over the last few weeks I've been writing a series of blog posts that cover LINQ to SQL. LINQ to SQL is a built-in O/RM (object relational mapper) that ships in the .NET Framework 3.5 release, and which enables you to easily model relational databases using .NET classes.
http://thedatafarm.com/main.aspx

The Data Farm :: Web Development, Software Applications & Some Help for .Net Developers, too!

This is the website for The Data Farm, owned by Julia Lerman, consultant, speaker, author and admitted programming addict.
Human Resources Skills is a Windows Forms application that enables you to track the skills and personal references that an employee has obtained. A single form enables you to create and view employees and their skills and references. http://msdn.microsoft.com/en-us/library/bb399293(v=vs.90).aspx

Human Resources Skills WinApp (EDM Sample Application)

http://msdn.microsoft.com/en-us/data/ee712907.aspx Past & Future Versions This page provides information on the latest version of Entity Framework (EF5), although much of it also applies to past versions. Check out the Version History for a complete list of versions and the features they introduced.

Beginner's Guide to ADO.NET Entity Framework

http://msdn.microsoft.com/es-es/library/bb399545(v=vs.90).aspx El Proveedor de datos de .NET Framework para SQL Server (SqlClient) proporciona funciones de fecha y hora que realizan operaciones en un valor de entrada System.DateTime y devuelven un resultado string , numérico o System.DateTime .

Funciones de fecha y hora (Entity SQL)

Los agregados son expresiones que reducen una serie de valores de entrada a un único valor, por ejemplo. Los agregados suelen usarse junto con la cláusula GROUP BY de la expresión SELECT y hay limitaciones con respecto a dónde se pueden usar. En la tabla siguiente se muestran las funciones canónicas de Entity SQL de agregado. http://msdn.microsoft.com/es-es/library/bb738514(v=vs.90).aspx

Funciones canónicas de agregado (Entity SQL)

Entity Framework 4

Videos, ejemplos y otros recursos disponibles gratis para descarga del evento en línea Entity Framework 4 Guía básica al Entity Framework 4 - Primera parte - Creando una base de datos a partir del modelo (El enfoque “model-first”) (1/2) http://www.comunidadesdeusuarios.net/cursos/ef4.aspx