LinQ Course And Certification

What is LINQ?

LINQ - Language Integrated Query is Microsoft’s query language that is fully integrated and allows for easy access to data from in-memory objects, XML documents, databases and many more. 

LINQ is carried out with the aid of a set of extensions, LINQ ably combines queries in Visual Basic and C#. This course offers you a complete understanding of LINQ with very clear and understandable examples and coding. 

LINQ further extends the programming language. It is used by the inclusion of various query expressions, most of which are similar to SQL statements, and can be used to easily and conveniently extract and process data from arrays, XML documents, enumerable classes, relational databases, and third-party data sources. 

Other use cases of LINQ, that make use of query expressions as a comprehensive framework for both concise and readable composing arbitrary computations, include the formation of monadic parsers or event handlers. It also represents a set of method names (referred to as standard query operators, or standard sequence operators), together with the rules of translation that are used by the compiler to translate fluent-style query expressions into expressions that make use of these method names, lambda expressions, and anonymous data types. Many of the features that LINQ brought up were initially tested in Microsoft's Cω research project. 

Various ports of LINQ exist for JavaScript (linq.js), PHP (PHPLinq), ActionScript (ActionLinq), and TypeScript (linq.ts), although none these are fully equivalent to LINQ in the .NET inspired languages such asF#, C#, and VB.NET (where it is a component of the language, not just an external library, and where it often used to address a wider range of needs). 

LINQ is much ordered, simpler, and higher-level than SQL. When we want to Query a Database, in most cases, LINQ is a much more productive query language than regular SQL. 

Also with LINQ, we have the advantage of IntelliSense as the LINQ query is developed behind the code. LINQ has a full type checking feature at compile time so that developers can catch any error in compile time itself. 

Example of a LINQ Query

In C#

using System;
using System.Linq;

class Program {
   static void Main() {
   
      string[] words = {"hello", "wonderful", "LINQ", "beautiful", "world"};
		
      //Get only short words
      var shortWords = from word in words where word.Length <= 5 select word;
	    
      //Print each word out
      foreach (var word in shortWords) {
         Console.WriteLine(word);
      }	 
		
      Console.ReadLine();
   }
}

Features and Benefits of LINQ

There are lots of features of LINQ and some of them are:

1. LINQ comes with lambda expressions to let you use anonymous functions.

2. LINQ has various extension methods.

3. LINQ has anonymous data types and var keyword.

4. LINQ has an expressive query expression syntax.

5. With LINQ, you do not need to learn new query language syntaxes for various sources of data because LINQ provides the standard query syntax for the different data sources.

6. In LINQ, you will write a Lesser amount of code when compared to the traditional approach. With the use of LINQ, you can minimize the code.

7. LINQ presents you with compile-time error checking as well as various intelligence support in Visual Studio. These powerful features help us to avoid run-time errors in your program.

8. LINQ presents you with a lot of built-in methods that can be used to carry out the different operations such as ordering, filtering, grouping, etc. which makes your work easier.

9. The query of LINQ can be reused.

10. Job opportunities and career advancement.

11. Increase your earning potential.  

LINQ Course Outline: 

LINQ - Introduction/Overview

LINQ - Environment Setup

LINQ - Query Operators

LINQ - SQL

LINQ - Objects

LINQ - Dataset

LINQ - XML

LINQ - Entities

LINQ - Lambda Expressions

LINQ - ASP.Net

LINQ - Video Lectures

LINQ - Exams And Certification