La Plateforme de donnéesMicrosoft

Entity Data Model, LINQ, ADO.Net

13 décembre 2007Eric SAMSON, CTO - XCALIAStève SFARTZ, MICROSOFT France

The Microsoft Data Platform : EDMA broad & comprehensive data platform - Entity Data Model is the

“glue”

Enter the EDMWhat is the Entity Data Model?

The EDM is a schema language for entities:

Entity type definitionsScalar typesInheritance of entity typesRelationship type definitionsContainers

Employee

Int32 EmployeeIDString LoginIDString TitleInt16 VacationHours…

Manager_Reports

Manager 0..1

Reports *

SalesEmployee

Bool ExpenseAccount…

The LINQ Project

C# 3.0 Visual Basic 9.0 Others

.NET Language Integrated Query

LINQ toObjects

LINQ toDataSets

LINQ toSQL

LINQ toEntities

LINQ toXML

Objects

<book> <title/> <author/> <year/> <price/></book>

XML

Relational

Démonstration

ADO.NET Entity Framework Beta 3

ADO.NET Entity Framework Tools December 2007 CTP

The ADO.NET Entity Framework

ADO.NET Providers

Dataset

ADO.NET 2.0

The Entity Data Model

Language Integrated Query (LINQ)

Bottle Winery

Supplier

<book> <title/> <author/> <year/> <price/></book>

ADO.NET Providers

Entity Client

Dataset

Object Services

LINQ over

Dataset

LINQ over

Entities

ADO.NET Entity Framework

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