from clause (C# Reference)

Specifies a data source and a range variable (similar to an iteration variable).

where clause (C# Reference)

Filters source elements based on one or more Boolean expressions separated by logical AND and OR operators ( && or || ).

select clause (C# Reference)

Specifies the type and shape that the elements in the returned sequence will have when the query is executed.

group clause (C# Reference)

Groups query results according to a specified key value.

into (C# Reference)

Provides an identifier that can serve as a reference to the results of a join, group or select clause.

orderby clause (C# Reference)

Sorts query results in ascending or descending order based on the default comparer for the element type.

join clause (C# Reference)

Joins two data sources based on an equality comparison between two specified matching criteria.

let clause (C# Reference)

Introduces a range variable to store sub-expression results in a query expression.