LINQ to SQL: The Mapping Engine

The primary purpose of any ORM system is to map relational data onto objects in your programming environment.  Mapping here refers to the meaning in the mathematical sense that there is a correspondence from one item to the other.  For example, a database row might map to an object, or a field in a database…

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IQueryable’s Deep Dark Secret

I love the IQueryable interface, but it’s got a dark checkered past that most of you might not know about.  IQueryable is a great way to expose your API or domain model for querying or provide a specialized query processor that can be used directly by LINQ.  It defines the pattern for you to gather-up…

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The Origin of LINQ to SQL

LINQ to SQL, possibly Microsoft’s first ORM to actually ship in ten years of trying, was never even supposed to exist.  It started out as a humble Visual Studio project on my desktop machine way back in the fall of 2003, long before anyone heard about it, long before anyone even guessed what would come…

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Oops, we did it again

A new update to LINQ preview is available at MSDN site. What’s the coolest new feature?  IMHO, its IQueryable<T>.   DLINQ’s query mechanism has been generalized and available for all to use as part of System.Query.  It implements the Standard Query Operators for you using expression nodes to represent the query. Your queries can now be…

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Beyond the Query

I have been working a long time to bring queries into a modern programming language. Seven years ago I looked beyond ORM and saw the next horizon, a new world where boundaries between data are blurred and popular paradigms from different disciplines combine. Many have tried to convince me that it is simply a mirage,…

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Citizen Statistics

I was on my way to post that my site had not actually been blocked by a foreign government, aside from all the rumors spread recently, that the truth was I had just been incredibly negligent at forming any coherent thoughts or communicating in general beyond my regular guest appearances on several late night talk shows,…

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YODA the Programming Language

Now that LINQ is out the door, so to speak, I can start focusing my efforts on the next next technology here at Microsoft. Ever since I joined up with the C# team nearly two years ago I’ve been frustrated by my inability to wax poetic about all the goodness we were working on. I…

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What the World is saying about LINQ

“LINQ is totally awesome. It’s like this thing that you use to condense your entire application into one line of demo code. Sweet!” – Stanley Morgan   “LINQ is divine but DLINQ is a delinquent. It gives programmers too much power and makes programming against data way too easy. Is nothing sacred anymore?” – Ned…

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LINQ Designer Receives Prestigious Award at PDC

In the wake and fanfare of the disclosure of the LINQ technology preview at the PDC 2005 in Los Angeles this last week, a member of the LINQ design team was presented with a prestigious award for outstanding achievement above and beyond his peers. Erik Meijer, most known for his antics as “Head in the Box”…

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LINQ, BB’s and the HTTP’ness

The Language Integrated Query (LINQ) demo during the PDC demo was exciting. There was applause all around whenever different products were shown and different speakers were introduced, yet when the LINQ demo was shown there was a lot of talk within the crowd, oohs and aahs, and a bunch of OMG-this-is-cool’s. The attendee sitting next…

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