1. ADO.NEXT Advances in Data Access for 2008
11/11/ :38 AM
ADO.NEXT Advances in Data Access for 2008
Mike Taulty
Developer & Platform Group
Microsoft Ltd
© 2007 Microsoft Corporation. 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.

2. What’s Coming in ADO.NET?
ADO.NET Data Services
ADO.NET Entity Framework
Slated for Summer, 2008 as part of an update to VS 2008 and Framework V3.5
Current bits are packaged in ASP.NET 3.5 Extensions Preview
More about that package in the next session

3. Entity Framework 11/11/2018 12:38 AM
© 2007 Microsoft Corporation. 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.

4. Entity Framework – Key Facts
Extends the ADO.NET Provider Model
Pluggable to support any database
Functionality
Abstracts a model from your store schema
ADO.NET API or LINQ-enabled ORM
Status
Currently at Beta 3

5. ADO.NET Today Provider Specific (PL/SQL) App Code ADO.NET Providers
“SELECT * FROM CUSTOMERS”
Customers
ADO.NET Today
App Code
ADO.NET
Customers
Command
Providers
Execute
SQL Server
Oracle
Oracle
...
DataReader
Customers

6. ADO.NET Entity Framework
Conceptual Model
UKCustomer
UKPremiumCustomer
Customers
Map

7. ADO.NET Entity Framework
Provider Agnostic (ESQL)
“SELECT * FROM UKCUSTOMER”
UKCustomer
ADO.NET Entity Framework
App Code
ADO.NET
Conceptual Model
UKCustomer
UKPremiumCustomer
Map
Entity
Provider
Customers
Command
Execute
Providers*
DataReader
UKCustomer
SQL Server
Oracle
Oracle
...

8. ADO.NET Entity FrameworkEF
Programming Model
Object Relational Mapping
LINQ
.NET Entity Provider (Entity SQL)
Command
Connection
Reader EF EF
Conceptual Model
Entity
relationship
Store Model
(SSDL)
Entity Data Model
(CSDL)
Mapping (MSL)
Store
.NET Data Provider
V2.0
Command
Connection
Reader
Adapter

9. LINQ to SQL? LINQ to Entities?
Database Support
SQL Server
Many
Object Relational Mapping Capabilities
Simple
Complex
Requires Attributed .NET Code No
Yes
Status
Released
Beta

10. demo { Entity Framework } 11/11/2018 12:38 AM
© 2007 Microsoft Corporation. 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.

11. LINQ to Entities – Lots of Topics
Change Tracking
Concurrency
Transactions
(i)POCO
Stored
Procs
Inheritance
Customising Code-Gen
Metadata
N-Tier
Compiled Queries
Performance

12. EF Providers in Progress
Vendor
DB Support
Microsoft
SQL Server
Core Lab
Oracle, MySQL, PostgreSQL, SQLite
IBM
DB2, Informix Dynamic Server
MySQL AB
MySQL
Npgsql
PostgreSQL
OpenLink
Many via OpenLink ODBC or JDBC
Phoenix
SQLite
DataDirect
Oracle, Sybase, SQL Server, DB2
Firebird

13. 11/11/ :38 AM
Data Services
© 2007 Microsoft Corporation. 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.

14. Data Services – Key Facts
Extends Windows Communication Foundation V3.5
Functionality
CRUD access to data over RESTful web services
Built-in URI-based query syntax
Client-side libraries for .NET and AJAX clients
Status
Currently in CTP ( latest December )

15. RESTful Web Services? XML JSON XML JSON Resources Res 1 URL VERB Res 2
HTTP Request
HTTP Response
Status
URL
VERB
GET
POST
PUT
DELETE
Payload
XML
JSON
Payload
XML
JSON

16. RESTful? Is this “the death of SOAP”? REpresentational State Transfer
Server-side resources identified by a URI
Access is over HTTP, verb tied to action
GET to read the value of a resource
POST to create a new resource
PUT to update an existing resource
DELETE to delete a resource
Returned data is “plain” – XML or JSON
Is this “the death of SOAP”?

17. data? what kind of data?
Provide a type with public properties which are;
IQueryable<T>, IEnumerable<T>
Also get write access if your type implements;
IUpdatable
Works well with generated code from;
ADO.NET Entity Framework (ObjectContext)
LINQ to SQL (DataContext*)

18. demo { Data Services } 11/11/2018 12:38 AM
© 2007 Microsoft Corporation. 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.

19. What’s Coming in ADO.NET?
ADO.NET Data Services
ADO.NET Entity Framework
Slated for Summer, 2008 as part of an update to VS 2008 and Framework V3.5
Current bits ASP.NET 3.5 Extensions Preview

20. Resources