InfoQ Homepage ADO.NET Content on InfoQ
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Does LINQ-to-Entities really return different results depending on previous queries?
In a recent blog post Stu Smith claimed that “LINQ-to-Entities will return different results depending on what previous queries you’ve executed!”. If true, this would make using Entity Framework much harder than necessary to use. We talked to Elisa Flasko of the ADO.NET Team to find out what’s really going on.
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Working Around Entity Framework's Large Data Model Issues
The Entity Framework doesn't support data models with much more than 50 to 100 entities. But since companies typically run everything from one central database, several hundred tables are the norm. Microsoft's ADO.NET team is presenting an article on Working With Large Models In Entity Framework, a list of issues and work-arounds for EF users.
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Meta-data Synchronization Tools for LINQ to SQL and ADO.NET Entity Framework
The designers in both LINQ to SQL and ADO.NET Entity Framework have a number of limitations. In order to work around these limitations, products such as Huagati DBML/EDMX Tools have been developed. There is no bloat here, everything is a must have for many shops.
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No Change Tracking for ADO.NET Entity Framework 2010
One of the biggest complaints about ADO.NET Entity Framework was that it did not support change tracking. Despite everything from ADO.NET DataSets to every single non-Microsoft ORM having support for this out of the box, Microsoft has no intention of fixing this in the .NET 4.0/VS 2010 timeframe.
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ADO.NET Data Services Is About to Go Offline
ADO.NET Data Services, previously known as Project Astoria, will receive offline capabilities in the near future. That means applications could be developed to synchronize their data, then use it in an offline fashion.
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Is LINQ to SQL Truly Dead?
Back in July we reported that LINQ to SQL was transferred to the SQL Data Programmability team. This event raised a lot of concern in the developer community, who worried that work on LINQ to SQL would halt in favor of ADO.NET Entity Framework. A recent announcement by Tim Mallalieu, Program Manager of both LINQ to SQL and Entity Framework, has exacerbated those concerns.
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Table-Valued Parameters in SQL Server
Table-valued parameters are a new feature introduced in SQL Server 2008. They provide a built-in way to send multiple rows of data from a client application to SQL Server in a single parameterized SQL statement.
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Is Database-as-a-Service a Bad Idea?
Data Management represents a strategic asset for Cloud Platforms as the most popular Data Services will likely command the largest platform market share. In a post this week, Arnon Rotem-gal-Oz argues that "Database-as-a-Service" is a bad idea. Would you trust your enterprise data to DaaS?
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Occasionally Connected Client Support With VS 2008 SP1
Visual Studio 2008 SP1 provides increased support for occasionally connected clients through an enhanced DataSet designer, integrating ADO.NET Sync Services and SQL Server 2008 Change Data Capture.
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Should LINQ to SQL Go Open Source
More and more, LINQ to SQL is being seen as a temporary solution. With the impending release of ADO.NET Entity Framework, a lot of people are worried that development on LINQ to SQL will fall by the wayside. With Microsoft's long history of developing and discarding database access technologies, these concerns are not without merit. So this raises the question, "Should LINQ to SQL Go Open Source?"
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ADO.NET Entity Framework Taking Some Heat
A petition has started by the community to express concerns over Microsoft's upcoming release of the ADO.NET Entity Framework. The petition titled "ADO.NET Entity Framework Vote of No Confidence", aims to raise awareness of design and implementation issues foreseen by experts in the industry.
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Merge, Replace, or Patch: How Astoria Handles Changing Data
Using REST, what should happen when you perform a PUT operation to update existing data? The Astoria Team asks that question and explains their answer.
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IdeaBlade announces DevForce EF beta for building Rich Internet Applications
Recently IdeaBlade announced DevForce EF which builds upon the Microsoft Entity Framework and will provide support for Silverlight.
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Presentation: Introduction to Spring.NET
Dr. Mark Pollack, founder of Spring.NET, provides an introduction focused on implementing and designing loosely coupled application architectures.
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Digging into the Performance of the ADO.NET Entity Framework
The ADO.NET Team recently discussed various performance aspects of the ADO.NET Entity Framework. The ADO.NET Entity Framework entered its third beta back in December and since that time the team has provided developers with information about using the framework but now they are providing developers with the performance aspects.