This document is a tutorial on LINQ concepts like SelectMany, Aggregate, deferred and immediate execution, joins, and references. It provides examples of using Aggregate to calculate a running product and balance. It demonstrates deferred query execution versus immediate execution. It also discusses cross joins, inner joins, and outer joins on sample data and how to perform each type of join.
6. Aggregate - Simple
This sample uses Aggregate to create a running product on the array that
calculates the total product of all elements.
7. Aggregate - Seed
This sample uses Aggregate to
create a running account
balance that subtracts each
withdrawal from the initial
balance of 100, as long as the
balance never drops below 0.
8. Deferred Execution
The following sample shows how query execution is deferred
until the query is enumerated at a foreach statement.
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