1. 05 | Data Access with Entity Framework Bruno Terkaly | Technical Evangelist Bret Stateham | Technical Evangelist

2. Entity Data Models Developer Workflows WCF Data Services Module Overview

3. Entity Data Models

4. Object/Relational Mappers (ORMs) Relational DatabaseModel / Classes {;} Object/Relational Mapper

5. Entity Framework Designer Models Entity Framework Store Schema Definition Language (SSDL) Mapping Specification Language (MSL) Conceptual Schema Definition Language (CSDL) EDMX Relational DatabaseModel / Classes {;}

6. Entity Framework Architecture Entity Framework Entity Framework Data Providers (SQL Server…) Entity Client (ado.net / Entity SQL) Object Services (DbContext) Relational DatabaseModel / Classes {;}

7. Get it With NuGet. Got It? Entity Framework 6 is RTM EntityFramework.codeplex.com –Open Source –Nightly Builds –Accept pull requests from the community Installable from NuGet –Release versions –Pre-Release if you choose to include them

8. Entity Framework Data Providers Microsoft Ships support for –Microsoft SQL Server (Via the EntityFramework NuGet Package) –Microsoft SQL Server Compact Edition (Via the EntityFramework.SqlServerCompact NuGet Package) 3 rd Party Providers –DevArt dotConnect Data Providers (devart.com) Oracle MySQL SQLite others –Firebird (FirebirdSQL.org)

9. Developer Workflows

10. Entity Framework Workflows New Database Existing Database Use DesignerWrite Code Database First: Reverse engineer existing database Designer generates model Classes are generated off the model You can update the database You can modify the classes / mapping Model First: Create your model in the designer Database is generated from model Classes are generated from model Can update model Database updates replace old objects Code First: Create your classes in code Mappings are defined in code Database is generated from code Updates are done using “migrations” Code Second: (not an official name) Create your classes in code Use Entity Framework Power Tools Reverse engineer model in designer

11. Database First New Database Existing Database Use DesignerWrite Code Database First: Reverse engineer existing database Designer generates model Classes are generated off the model You can update the database You can modify the classes / mapping Model First: Create your model in the designer Database is generated from model Classes are generated from model Can update model Database updates replace old objects Code First: Create your classes in code Mappings are defined in code Database is generated from code Updates are done using “migrations” Code Second: (not an official name) Create your classes in code Use Entity Framework Power Tools Reverse engineer model in designer

12. DEMO Database First Workflow

13. Code First Workflow New Database Existing Database Use DesignerWrite Code Database First: Reverse engineer existing database Designer generates model Classes are generated off the model You can update the database You can modify the classes / mapping Model First: Create your model in the designer Database is generated from model Classes are generated from model Can update model Database updates replace old objects Code First: Create your classes in code Mappings are defined in code Database is generated from code Updates are done using “migrations” Code Second: (not an official name) Create your classes in code Use Entity Framework Power Tools Reverse engineer model in designer

14. DEMO Code First Workflow

15. WCF Data Services

16. OData Where Art Though? OData is a protocol for creating and consuming data APIs Check it out at OData.orgOData.org Provides a standard way to use REST to expose & consume data

17. WCF Data Services A convenient way to create OData services Can expose most any model as Odata Entity Framework is a great way to build your models WCF Data Services 5.6.0 Available via NuGet –WCF Data Services Server – Microsoft.Data.Services –WCF Data Services Client – Microsoft.Data.Services.Client Access Data using URIs or a Client Library –OData Query String OptionsOData Query String Options

18. DEMO Creating and Consuming a WCF Data Service

19. ©2013 Microsoft Corporation. All rights reserved. Microsoft, Windows, Office, Azure, System Center, Dynamics 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.