Introduction To LINQ

LINQ (Language Integrated Query) is the composition of general purpose standard query operators that allow us to work with data regardless of the data source in any .net based programming language.LINQ is a Microsoft programming model and methodology that essentially adds formal query capabilities into Microsoft .NET-based programming languages.

Language Integrated Query defines a set of general purpose standard query operators that allow traversal, filter, and projection operations to be expressed in a direct yet declarative way in any .NET-based programming language.

The standard query operators allow queries to be applied to any IEnumerable <T>-based information source.

LINQ allows third parties to augment the set of standard query operators with new domain-specific operators that are appropriate for the target domain or technology.

LINQ provides a high-level abstraction of virtually any data and emulates the query operations of the relational model.

LINQ has three major components:

1. LINQ to Objects


2. LINQ to XML


3. LINQ to ADO.NET

• LINQ to DataSet


• LINQ to Entities


• LINQ to SQL

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