InfoQ Homepage Data Access Content on InfoQ
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Partitioning and Sharding Options for SQL Server and SQL Azure
Horizontal partitioning and sharding are important tools for developers working with extremely large datasets. We take a brief look at what’s available in SQL Server and what’s coming down the road.
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datajs– Using OData From Within the Browser
Microsoft has created a JavaScript library enabling developers to consume OData from within the browser.
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Amazon Will Offer Oracle Database 11g on RDS
Amazon will offer Oracle Database 11g on RDS which brings patching, backup, replication, and failover support to Oracle’s database.
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Google Releases the High Replication Datastore for App Engine
Google offers now two options for storage on its App Engine, the Master/Slave Datastore and the new High Replication Datastore, which remains available during downtime and offers a higher degree of resiliency to catastrophic failures.
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Whitepaper Released: Sharding with SQL Azure
Yesterday Microsoft released a new whitepaper providing guidance on sharding with SQL Azure written by Michael Heydt and Michael Thomassy. The intent of the whitepaper is to deliver guidance on how to architect an application that requires elasticity and fluidity of resources at the data layer over time.
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Introducing NHibernate 3.0
NHibernate 3.0 is the first major release of the popular ORM in over a year. With the release it has changed the CLR version to .NET 3.5. This allows the creation of the QueryOver API, while replaces the string-based ICriteria expressions with strongly typed lambda expressions. This is in addition to the built-in LINQ provider.
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Named Resource Streams for WCF Data Services
Under the current version of WCF Data Services, developers can associate only one streaming resource with a given entity. With the October 2010 CTP, developers can now add additional named streams to an entity. For example, for images you may have streams named “Thumbnail”, “Small”, and “Full”.
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MySQL Changes: More Expensive and No InnoDB for the Classic Edition
Oracle has published a new comparison table for the MySQL Editions offered with support. Major changes include a rise of the price and InnoDB is removed from the Classic Edition.
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Eclipse Virgo Released
The inaugural version of Eclipse Virgo was released today, including the Eclipse Gemini Web component. Despite these being the first release under the Eclipse moniker, they are the natural evolution of the well-regarded Spring DM Server. Read on to find out what's important about this release.
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DB2 Debugging in Visual Studio 2010
IBM is offering a demo of their DB2 Add-ins for Visual Studio 2010. In addition to "full end to end debugging for SQL procedures for VB and C# apps”, it includes ADO.NET and Entity Framework providers for many of the DB2 variants.
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IBM Cuts DB 2 Prices While Oracle Raises the Cost of MySQL
MySQL and DB2 are a lot alike. Both are free to start, but to get the tools needed to properly support them you have to buy subscriptions form the vendor. At the same time that Oracle is raising MySQL’s subscription to 3,000 per server, IBM is dropping DB2 to 1,500 per server.
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Apache Cayenne 3.0 Supports Remote Object Persistence and ORM Modeling Tools
The new version of Apache Cayenne, an open source Java framework for object relational mapping and persistence, supports Remote Object Persistence and ORM Modeling Tools. InfoQ spoke with Cayenne project leads about the new features of the framework.
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Roundup of String to Java Object Conversion Libraries
Stephen Colebourne, of Joda Time fame, ignited a small debate when he released Joda Convert: a Java library to convert basic Objects to and from Strings using annotations. InfoQ surveys the options when transforming from one format to another.
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EffiProz: A Cross-Platform Embedded Database for .NET Programmers
EffiProz is an embedded database written entirely in C# that can has both a disk-based and a memory-only mode. This has allowed its developers to port it to most environments that have CLR including .NET Compact, Mono, Windows 7, and Silverlight. The next version will extend this to mobile platforms.
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CouchDB Comes to Android
Couchio, the company founded by Damien Katz, creator of CouchDB, has announced the release of CouchDB SDK for Android, a mobile version of the document database that can be used offline.