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Development Programming Languages Linq

Mastering LINQ with C# and .NET

Learn .NET's secret sauce for querying collections and databases
Bestseller
Rating: 4.4 out of 54.4 (1,377 ratings)
8,769 students
Created by Dmitri Nesteruk
Last updated 1/2017
English
English [Auto]
30-Day Money-Back Guarantee

What you'll learn

  • Create and execute LINQ queries on data sets
  • Perform ad hoc data queries on in-memory and external data sources
  • Query databases
  • Write your own LINQ operators
  • Use advanced libraries and approaches for data querying
Curated for the Udemy for Business collection

Course content

6 sections • 42 lectures • 3h 32m total length

  • Preview04:01

  • Overview
    00:53
  • How LINQ Works
    07:04
  • IEnumerable<T>
    05:09
  • Preview06:21
  • Start Using LINQPad
    04:07
  • Generation Operations
    04:59
  • Summary
    04:00

  • Overview
    03:57
  • Reminder re: Samples
    00:16
  • Converting Data Types: Cast, ToXxx and AsXxx
    06:50
  • Preview13:02
  • Filtering Data: OfType and Where
    03:26
  • Projection and Filtering
    1 question
  • Sorting Data: OrderBy, ThenBy, Reverse
    11:40
  • Preview08:04
  • Set Operations: Distinct, Except, Intersect, Union
    05:17
  • Set Operations
    1 question
  • Quantifier Operations: All, Any and Contains
    03:58
  • Partitioning Data: Skip(While) and Take(While)
    03:41
  • Quantifiers and Partitioning
    1 question
  • Join Operations: Join and GroupJoin
    07:56
  • Equality Operations (SequenceEqual, NUnit comparisons)
    05:41
  • Element Operations: First, Last, Single, ElementAt
    07:01
  • Concatenation Operations (Concat)
    03:05
  • Aggregation Operations: Aggregate, Count, Statistical Functions
    10:16
  • Aggregation Operations
    1 question
  • Summary
    07:34

  • Overview
    03:08
  • The Magic of Expression Trees (Expression<T>)
    04:27
  • Preview03:17
  • LINQ to Entities (Entity Framework)
    05:54
  • Async LINQ Queries (Entity Framework)
    04:03
  • Summary
    01:14

  • Overview
    01:40
  • AsParallel and ParallelQuery
    08:55
  • Cancellation and Exceptions
    06:24
  • Preview04:20
  • Custom Aggregation
    04:26
  • Summary
    01:16

  • Overview
    01:09
  • LINQ to XML (System.Xml.Linq)
    06:29
  • LINQ Support in ReSharper/Rider
    06:50
  • MoreLINQ
    08:34
  • Course Summary
    02:00
  • Would You Like to Know More?
    00:21

Requirements

  • Basic knowledge of C#
  • Basic understanding of C# collection types (e.g., array, list, etc.)
  • Understanding of extension methods

Description

This is a comprehensive course on a technology called Language Integrated Query (LINQ). LINQ is a core part of .NET that is responsible for helping us iterate through, filter, search, transform and manipulate collections, be it local objects (arrays, lists, etc.) or remote objects (e.g., databases).

This course covers:

  • What LINQ is, how it's implemented and what interfaces it uses
  • Main LINQ operators (there are lots of them!)
  • Using LINQ to query databases (LINQ to Entities)
  • Technologies with LINQ support (e.g., LINQ to XML)
  • Parallel LINQ (PLINQ) and how to use it to parallelize your queries
  • Extra topics (e.g., LINQ tool support in Rider/ReSharper, using MoreLINQ)

Who this course is for:

  • Beginner and experienced .NET/C# developers
  • Anyone interested in modern approaches to data query
  • Database administrators interested in writing data query C#

Featured review

Massimo Picco
Massimo Picco
60 courses
4 reviews
Rating: 5.0 out of 5a year ago
I took this class as a refresher before then deep diving into Reactive Extensions, and I have to say that it is very good. From my standpoint, I believe it is also a very effective LINQ jumpstart course

Instructor

Dmitri Nesteruk
Software/Hardware Engineering • Quant Finance • Algotrading
Dmitri Nesteruk
  • 4.4 Instructor Rating
  • 27,845 Reviews
  • 146,175 Students
  • 21 Courses

Dmitri is a quant, developer, book author and course author. His interests lie in software development and integration practices in the areas of computation, quantitative finance and algorithmic trading. His technological interests include C# and C++ programming as well high-performance computing using technologies such as CUDA and FPGAs. He has been a C# MVP since 2009. 

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