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LINQ is a revolutionary feature of the .NET Framework for simplifying data query and management.
It provides developers with better productivity, simpler syntax, and the facility to work with multiple data sources.
LINQ has brought a new revolution in the world of data access by overcoming the limitations of ADO.NET.

What is LINQ?

LINQ (Language Integrated Query) is a powerful feature in the .NET Framework that provides a simple and uniform way to query data from data sources such as SQL databases, XML, in-memory objects, and others.
LINQ was introduced by Microsoft in 2007 with .NET Framework 3.5.
Its specialty is that it uses SQL-like syntax in languages like C# and VB.NET to query data.

Why LINQ When We Have ADO.NET in Hindi | Why do we need LINQ:

ADO.NET was already available for data access and management, but LINQ made it simpler and more developer-friendly.

Difference between LINQ and ADO.NET:

Simpler Syntax: In ADO.NET, long code had to be written to access and process data. With LINQ, queries can be written and understood in less code.
Consistency: LINQ provides the same syntax for different types of data sources (such as XML, databases, in-memory collections).
Fewer Bugs: With the use of LINQ, it is easy to catch compile-time errors because it is strongly-typed.

A simple example of LINQ (Sample LINQ Query)

Below is an example of a simple LINQ query:

using System;

using System.Linq;

class Program

{

static void Main()

{

// Using LINQ on an integer array

int[] numbers = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };

// LINQ query

var evenNumbers = from num in numbers

where num % 2 == 0

select num;

// Showing the result

Console.WriteLine("Even Numbers:");

foreach (var num in evenNumbers)

{

Console.WriteLine(num);

}

Output:

Even Numbers:

Data Sources in LINQ in Hindi | Data sources in LINQ:

With LINQ, we can work on different types of data sources:

Advantages of LINQ in Hindi | Advantage of LINQ:

Less code: Less code needs to be written in LINQ.
Strong typing: LINQ is strongly-typed, which makes it easy to catch errors early.
Simple to read and understand: The syntax of LINQ is similar to SQL, which makes it easy to understand.
Diverse data sources: LINQ provides a single interface, which makes it simple to handle different data sources.