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Part 3 in the LINQ series, this provides an introduction to IQueryable, IQueryProvider, and LINQ expression trees. In this series, we've explored IEnumerable and taken a look at the standard methods that extend this interface. Together these form a small, but crucial part of LINQ, known as LINQ to Objects. Another important aspect of LINQ is its ability to query other data sources (e.g. databases)

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LINQの解説