LINQ for Visual C# 2008

1.10. Standard Query Operators

LINQ provides an API known as standard query operators (SQOs) to support the kinds of operations we're accustomed to in SQL. You've already used C#'s select and where keywords, which map to LINQ's Select and Where SQOs—which, like all SQOs, are actually methods of the System.Linq.Enumerable static class. Table 1-1 is a complete listing of SQOs.

Table 1-1. LINQ Standard Query Operators Grouped by Operation

OPERATION	OPERATOR	DESCRIPTION
Aggregate	Aggregate	Applies a function over a sequence
	Average	Calculates the average over a sequence
	Count/LongCount	Counts the element of a sequence
	Max	Returns the maximum value from a sequence of numeric values
	Min	Returns the minimum value from a sequence of numeric values
	Sum	Returns ...