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By Fabrice Marguerie
LINQ, Language built-in question, is a brand new extension to the visible uncomplicated and C# programming languages designed to simplify information queries and database interplay. It addreses O/R mapping concerns via making question operations like SQL statements a part of the programming language. including to its energy, LINQ is extensible and will be used to question numerous facts assets. It bargains integrated help for querying in-memory collections like arrays or lists, XML, DataSets, and relational databases. LINQ in motion is a fast moving, complete instructional for pro builders who are looking to use LINQ. This e-book explores what could be performed with LINQ, indicates you the way it really works in an program, and addresses the rising most sensible practices.
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Extra resources for LINQ in Action
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Why did Microsoft apparently stop working on these technologies? Well, the cat came out of the bag at PDC 2005, when the LINQ project was announced. NET. With LINQ, we can query pretty much anything. This is why Microsoft favored LINQ instead of continuing to invest in separate projects like ObjectSpaces or support for XQuery on the client-side. As you’ve seen, LINQ has a rich history behind it and has benefited from all the research and development work done on prior, now-defunct projects. Before we go further and show you how it works, how to use it, and its different flavors, what about writing your first lines of LINQ code?
The compiler will catch errors in your queries. Extensive IntelliSense support (enabled by strong-typing) Assist developers when writing queries to improve productivity and to help them get up to speed with the new syntax. The editor will guide you when writing queries. Debugger support Allow developers to debug LINQ queries step by step and with rich debugging information. 0 Reuse the rich features that have been implemented in the previous versions of the languages. 0 CLR Avoid requiring a new runtime and creating unnecessary deployment hassles.
0. 0). ObjectSpaces LINQ to SQL is not Microsoft’s first attempt at object-relational mapping. Another project with a strong relationship to LINQ was ObjectSpaces. NET presentation. ObjectSpaces was a set of data access APIs. It allowed data to be treated as objects, independent of the underlying data store. ObjectSpaces also introduced OPath, a proprietary object query language. 0 and Visual Studio 2005). No new releases happened after that. Everybody realized that ObjectSpaces would never see the light of day when Microsoft announced that WinFS wouldn’t make it into the first release of Windows Vista.