InfoQ Homepage Data Access Content on InfoQ
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LINQ to SQL, The Next Step
Despite the numerous problems with Microsoft ORMs and the plethora of alternatives such as LLBLGen, nHibernate, and OpenAccess, many developers are forced to use Microsoft tech because that is why their company or customer wants. And between the two offerings, it seems most developers believe that Entity Framework is not a viable option. So what are they do to?
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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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Envers Joins Hibernate
Envers is an open-source project from JBoss which has recently been added under the Hibernate umbrella.
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Amazon’s SimpleDB Enters Public Beta
Amazon finished private beta testing and has entered into public unlimited beta of its cloud database service named SimpleDB. SimpleDB is meant to be a simple to be accessed database in the cloud, and Amazon is offering limited access to it for free.
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Martin Fowler Sees a Thaw in Frozen Thinking about Data Storage
In a recent blog post, Martin Fowler, a renowned software thought leader, observed at last week's QCon that the deep freeze in thinking about databases in application architectures is thawing. The world has been stuck using RDBMS databases for every application use case, but the time has come to also consider RISC RDBMS or distributed document-oriented databases.
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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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Sequel, The Database Toolkit For Ruby
Sequel, apart from being an alternative to ActiveRecord, offers a complete Ruby toolkit to handle database operations. InfoQ had the chance to catch up with Jeremy Evans who replaced Sharon Rosner as project leader eight months ago.
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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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Performance Problems Mar SQL Server 2008 Full Text Search
SQL Server Full Ttext Search is a rather specialized discipline among database administrators. For roughly a decade it has been something separate from the rest of SQL Server, and in most cases unnecessary. But for those who do use it, it tends to be core to how data is indexed and retrieved. For those using it and upgrading to SQL Server 2008, trouble is brewing.
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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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Presentation: Rockstar Memcaching
In this presentation from RubyFringe, Tobias Lütke talks about memcached, the widely used caching solution. Tobias explains how to use it and gives some practical tips on what not to do.
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Introducing the Microsoft Sync Framework (Again)
Back in August, we reported on the release of the Microsoft Sync Framework. Strangely enough, they recently have released it again. In honor of this bizarre event, we are following up with what information we have on this muddled framework.
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Polyforms - Reduce DAO Code Duplication
The goal of the Polyforms project is to remove the heavily duplicated glue code to tie data access objects to the underlying persistence API.
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Java In-Memory Persistence with Space4J
Space4J is a simple database system that will let you work with Java Collections in memory. Since memory is several orders of magnitude faster than disk for random access to data, Space4J provides better scalability for "real-time" web applications and systems that require performance.