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A Little on LINQ

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Recently I was involved (only a little) in preparing some of the Visual Studio Launch content for the February 27th launch event (and subsequent worldwide events). During the preparation we held "train-the-trainer" meetings where people who would be presenting launch sessions around the world could learn more about the sessions and ask questions. During one of these TTT events a question was raised about a LINQ demo that was written for a session named "Breakthrough Software Development Challenges with Visual Studio 2008".

The Question

Is there a performance impact to joining result sets in LINQ from two different data sources?

This question came up because this is exactly one of the scenarios we demo.

This blog has been moved. Go to <www.dougseven.com> to see a video of the demo and find out the answer to the question.

D7