Writing Clean & efficient data access code with ADO

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Presentation transcript:

Writing Clean & efficient data access code with ADO Writing Clean & efficient data access code with ADO.NET ENTITY FRAMEWORK Niraj Bhatt MVP | ASP.NET http://nirajrules.wordpress.com | niraj@indiamvps.net

I am unhappy …

Entity Framework??? Object Relational Mapper Bridges the impedance mismatch between conceptual (object) & storage (relational) world. STORAGE CONCEPTUAL

More than O/R mapper ADO.NET DATA SERVICES OSLO SQL SERVER REPORTING SERVICES AZURE SQL SERVER ANALYSIS SERVICES

Entity Framework Architecture

DEMO Creating EDM Required Software for Demos: VS.NET 2008 SP1, .NET 3.5 SP1, SQL SERVER 2005 SP2

Exploring EDM

Querying via EntityClient DEMO Querying via EntityClient Required Software for Demos: VS.NET 2008 SP1, .NET 3.5 SP1, SQL SERVER 2005 SP2

Querying via ObjectQuery DEMO Querying via ObjectQuery Required Software for Demos: VS.NET 2008 SP1, .NET 3.5 SP1, SQL SERVER 2005 SP2

Querying via LINQ To Entities DEMO Querying via LINQ To Entities Required Software for Demos: VS.NET 2008 SP1, .NET 3.5 SP1, SQL SERVER 2005 SP2

Tracking with ObjectStateManager DEMO Tracking with ObjectStateManager Required Software for Demos: VS.NET 2008 SP1, .NET 3.5 SP1, SQL SERVER 2005 SP2

CHANGING GEAR Moving to Advanced Concepts

Tracing, Concurrency, Lazy Loading, Inheritance DEMO Tracing, Concurrency, Lazy Loading, Inheritance Required Software for Demos: VS.NET 2008 SP1, .NET 3.5 SP1, SQL SERVER 2005 SP2

What you can expect in V2? Better integration with rest of .NET stack WPF, WCF, WF, … PI Support (Persistence Ignorance) N-Tier Support Flip switch for Lazy Loading Table Value Functions Improved Tracing …

References TSQL vs. ESQL EF Overview http://msdn.microsoft.com/en-us/library/bb738573.aspx EF Overview http://www.scip.be/index.php?Page=ArticlesNET12#EntitySQL eSqlBlast http://code.msdn.microsoft.com/esql/Release/ProjectReleases.aspx?ReleaseId=991

References EF N-Tier Support Discussion EF Performance http://blogs.msdn.com/efdesign/archive/2008/11/20/n-tier-improvements-for-entity-framework.aspx EF Performance http://blogs.msdn.com/adonet/archive/2008/02/04/exploring-the-performance-of-the-ado-net-entity-framework-part-1.aspx http://blogs.msdn.com/adonet/archive/2008/06/20/how-to-use-a-t4-template-for-view-generation.aspx

References EF V2 EF Automatic Lazy Loading EF 3rd Party Providers http://mschnlnine.vo.llnwd.net/d1/pdc08/WMV-HQ/TL20.wmv EF Automatic Lazy Loading http://www.singingeels.com/Articles/Entity_Framework_and_Lazy_Loading.aspx EF 3rd Party Providers http://www.sybase.com/detail?id=1057559 http://pgfoundry.org/frs/shownotes.php?release_id=1230 http://sqlite.phxsoftware.com/ http://devart.com/news/2008/directs475.html

Reference Blogs http://blogs.msdn.com/jkowalski/default.aspx http://johnpapa.net/ http://www.thedatafarm.com/blog/ http://blogs.msdn.com/dsimmons/default.aspx http://blogs.msdn.com/adonet/default.aspx

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Contact Blog Address http://nirajrules.wordpress.com Email Address niraj@indiamvps.net