Download - Entity Framework ADO.net

7/30/2019 Entity Framework ADO.net

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ADO.NET Entity Framework

Mike Taulty

Developer & Platform Group

Microsoft [email protected]

http://www.mtaulty.com
mailto:[email protected]://www.website.com/http://www.website.com/mailto:[email protected]


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ADO.NET Entity Framework

Extension to the ADO.NET provider model

Functionality

Program against an abstracted model of yourstore schema

Use traditional ADO.NET API or ORM/LINQ

Slated to ship mid 2008

Currently at Beta 3, Tooling at CTP 2Downloadable in ASP.NET 3.5 Extensions Preview
http://www.asp.net/downloads/3.5-extensions/http://www.asp.net/downloads/3.5-extensions/


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Quick Demo to Defer Boredom


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.NET Entity Provider (Entity SQL)

Command

ConnectionReader

V3.0

Entity Framework Architecture

Store.NET Data Provider

V2.0

Command

ConnectionReader

Adapter

V3.0

Conceptual Model

Entity Entityrelationship

Mapping (MSL)

V3.0

Programming Model

Object Relational Mapping

LINQ


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Tools, SSDL, MSL, CSDL


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Programming with Entity SQL

The EntityClient provides the usual

Connection, Command, DataReader

There is no EntityDataAdapter

V1.0 the model is read-only

Entity SQL has some additional constructs to

expose the underlying conceptual model e.g.;

ANYELEMENT CREATEREF DEREF IS OF KEY MULTISET NAVIGATE OFTYPE

OVERLAPS REF ROW SELECT SET TREAT USING


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Programming with Entity Client


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Mapping Examples ( 1 Splitting )

Store

Good Customers

IDFirstName

LastName

Bad Customers

ID

ForeName

Surname

Customers

CustomerId

First

Last

Type

EntitiesMapping

Type=G

Type=B


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Mapping Examples ( 2 TPH )

Store

Customer

CustomerIdFirst

Last

EntitiesMapping

Customers

ID

FirstName

LastName

IsPremium

Overdraft

AccountManager PremiumCustomer

Overdraft

AccountManager

?

* Framework also supports TPT


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Mapping Examples ( 3 View + SPs )

Store

UkCustomer

CustomerId

Name

EntitiesMapping

ClientView1

select

c.id, c.name

from

customers c

where

c.country = UK

p_DeleteUkCustomer

p_UpdateUkCustomer

p_InsertUkCustomer


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Querying with Entity SQL


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Programming with LINQ to Entities

New Data Access ORM API implemented in

assembly

System.Data.Entity.dll

System.Data.Entity.Design.dll

Many Namespaces

System.Data.Entity

System.Data.Objectsand many more...

ORM API can be used with or without LINQ


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Key Classes

State

Management

Connection

provider

Metadata

MSL SSDLCSDL

CRUD


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LINQ to Entities Possible Topics

ChangeTracking

Concurrency Transactions (i)POCO

Stored

ProcsInheritance

CustomisingCode-Gen

Metadata

N-TierCompiledQueries


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LINQ to Entities


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Resources

Download ASP.NET 3.5 Extensions Preview

http://www.asp.net

ADO.NET Team Bloghttp://blogs.msdn.com/adonet

Search for entity on

http://mtaulty.com
http://www.asp.net/downloads/3.5-extensions/http://www.asp.net/http://blogs.msdn.com/adonethttp://mtaulty.com/http://mtaulty.com/http://blogs.msdn.com/adonethttp://www.asp.net/http://www.asp.net/downloads/3.5-extensions/


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Updates

Go here to download the latest version of this

slide-deck

http://mtaulty.com/downloads/dw08.zip
http://mtaulty.com/downloads/dw08.ziphttp://mtaulty.com/downloads/dw08.zip


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MSDN in the UK

Visit http://msdn.co.uk

NewsletterEvents

Screencasts

Blogs
http://msdn.co.uk/http://msdn.co.uk/


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2007 Microsoft Ltd. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.

The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market

conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation.

MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Download - Entity Framework ADO.net

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