Program.cs

using System;
using System.Linq;
using System.Collections.Generic;

namespace EFGetStarted
{
    internal class Program
    {
        private static void Main()
        {
            using (var db = new BloggingContext())
            {
                // Note: This sample requires the database to be created before running.

                // Create
                Console.WriteLine("Inserting a new blog");
                db.Add(new Blog { Url = "http://blogs.msdn.com/adonet" });
                db.SaveChanges();

                // Read
                Console.WriteLine("Querying for a blog");
                var blog = db.Blogs
                    .OrderBy(b => b.BlogId)
                    .First();

                // Update
                Console.WriteLine("Updating the blog and adding a post");
                blog.Url = "https://devblogs.microsoft.com/dotnet";
                blog.Posts.Add(
                    new Post { Title = "Hello World", Content = "I wrote an app using EF Core!" });
                db.SaveChanges();

                // Delete
                Console.WriteLine("Delete the blog");
                db.Remove(blog);
                db.SaveChanges();

                // Bulk
                List<Post> posts = new List<Post>();
                posts.Add(new Post { Title = "1", Content = "One" });
                posts.Add(new Post { Title = "2", Content = "Two" });
                db.BulkInsertOrUpdate(posts);
            }
        }
    }
}