LINQ or Language Integrate Query is a component of Visual Studio developed by Microsoft and introduced in 2007. It simplifies the creation and execution of query expressions.
.. It can also help you with more complicated queries such as finding customers in a certain state,that have bought a certain product, from a certain store. Without LINQ, you would have to iterate over the set with a series of nested and complicated for each loops.The syntax that LINQ uses is easier to create, read and maintain.