InfoQ Homepage Database Content on InfoQ
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Object Relational Mapping - User Case Studies
Roberto Zicari, from ODBMS.org, collected interviews and stories from several users of Object/Relational mapping technologies. The main point of the cases was around "impedance mismatch" between the object technology in the domain model and the relational technology in the data model.
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Interview: Avi Bryant on DabbleDB, Smalltalk and Persistence
In this interview from QCon 2008, Avi Bryant talks about his Smalltalk web framework Seaside and DabbleDB. Also: Avi explains how DabbleDB uses Smalltalk images for persistence instead of an RDBMs and how to make Squeak scale.
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Databases Roundup: Data Sharding for ActiveRecord and Faster Postgres IO
In this databases roundup we take a look at DataFabric, FiveRun's recently open sourced data sharding plug-in for ActiveRecord. Also: a look at speeding up Postgres data access using the asynchronous client API and Ruby 1.9's Fibers.
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RAM is the new disk...
Jim Gray, a man who has contributed greatly to technology over the past 40 years, is credited with saying that memory is the new disk and disk is the new tape. With the proliferation of "real-time" web applications and systems that require massive scalability, how are hardware and software relating to this meme?
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Neo4j - an Embedded, Network Database
Neo4j is an embedded network model database for Java, Ruby and Python applications. It is capable of handling billions of nodes/relationships/properties on single machine hardware, supporting ACID transactions, durable persistence, concurrency control, transaction recovery, and everything else you’d expect from an enterprise-strength database.
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Perst 3.0 Embedded Database Released
McObject has released version 3.0 of its open source embedded database targeted at Java and .NET developers.
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Principles and Guidelines for an Optimized Use of BigTable
Based on a number of conversations around Google App Engine, Todd Hoff outlined on his blog a set of principles that are instrumental for optimizing the use of distributed and highly scalable storage systems, such as BigTable, and defining its perimeter. The conceptual approach he advocates for is radically different from the one used in relational database world.
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The ADO.NET Entity Framework Sparks a Debate
A recent blog post written by Danny Simmons, a Microsoft ADO.NET developer, about the ADO.NET Entity Framework has started a series of reactions about the respective topic.
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MagLev: Gemstone builds Ruby runtime based on Smalltalk VM
OODB vendor Gemstone works on a Ruby VM called MagLev. Working with Seaside's and DabbleDB's Avi Bryant, Gemstone bases the Ruby runtime on their Smalltalk VM to offer performance and powerful persistence features. We talked to Avi Bryant and Gemstone's Bob Walker about the technology behind MagLev and the plans for it.
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StrokeDB, Just Another Distributed Database? Not Really.
As Distributed Databases get more and more interest, implementations are flourishing. CouchDB showed the way and is now incubated as an Apache project. RDDB was one of the first Ruby implementation of a Document-Oriented Distributed Database. We will check how a new database, StrokeDB, differentiates itself in the area with new promising features.
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DbFit 1.0 With Enhanced Querying Capabilities and User Docs
Gojko Adzic has recently announced the version 1.0 release of DbFit, his popular FIT/FitNesse extension used for practicing TDD on database code.
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The Buzz on SQL Server 2008 CTP6
Community Technology Preview 6 has been in developer's hands for almost a month.
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LongJump Introduces Database-as-a-Service
LongJump, a provider of customizable business application, has introduced a new service to provide database hosting to companies that are looking to reduce maintenance and administration costs.
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Sun purchases MySQL: Perspectives and Analysis on the Impact
In a move which caught many off guard, Sun Microsystems announced that it would be acquiring MySQL AB, the company which owns and develops the MySQL database, for $1 Billion USD. InfoQ analyzed the announcement and reactions and spoke with Kevin Harvey, Chairman of the MySQL board of directors, to learn more about this deal and what it may mean for the future.
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The RDBMS is not enough.
In a world of services, RDBMS are not the solution to every problem. Document Oriented Distributed Databases try to solve this and add a new way of storing documents. CouchDB (written in Erlang) is in its alpha stage and evolving on a regular basis. InfoQ caught up with Anthony Eden who is implementing the same concept in Ruby with RDDB.