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05 April 2011, 16:19

.NET ORM Dapper released as open source

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Web scale logo Dapper, a simple SQL object relational mapper (ORM) for SQL Server and .NET, has been released as open source. It allows a developer to execute a query and map the results to either a strongly typed list or a list of dynamic objects. Dapper is designed to be almost as fast as hand-tuned code using SqlDataReader and benchmarks within milliseconds of that goal.

Sam Saffron, a hacker at developer Q&A site Stack Overflow, announced the open sourcing of Dapper on Twitter. Stack Overflow now use Dapper in their production systems. In a previous blog posting, Saffron explained that the Stack Overflow developers created Dapper in response to the load that Google's web-spidering processes put upon the site. Because the site changes rapidly as users ask and answer questions, Google's web spider can process ten pages a second.

Hosted on Google Code, Dapper is released under version 2.0 of the Apache License.


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