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Introduction to Entity Framework Core

Entity Framework (EF) Core is an Object-Relational Mapping (ORM) framework for .NET. It allows developers to work with databases using .NET objects, eliminating much of the data-access code typically required.

Key Topics

Features of EF Core

Example

// Key Features
// - Cross-platform support
// - Support for LINQ queries
// - Migrations for schema changes
// - Asynchronous programming support

Explanation: EF Core simplifies database interactions by allowing developers to work with objects and LINQ queries.

Why Use EF Core?

Example

using (var context = new MyDbContext())
{
    var employees = context.Employees.ToList();
    Console.WriteLine("Retrieved " + employees.Count + " employees.");
}

Explanation: EF Core eliminates the need for SQL queries by allowing developers to interact with the database using objects and LINQ.

Key Takeaways

  • EF Core is a cross-platform ORM for .NET applications.
  • It simplifies database access by mapping .NET objects to database tables.
  • Supports LINQ, migrations, and asynchronous programming.
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