Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Entity Framework Core Cookbook
  • Table Of Contents Toc
Entity Framework Core Cookbook

Entity Framework Core Cookbook - Second Edition

By : Peres
2 (3)
close
close
Entity Framework Core Cookbook

Entity Framework Core Cookbook

2 (3)
By: Peres

Overview of this book

Entity Framework is a highly recommended Object Relation Mapping tool used to build complex systems. In order to survive in this growing market, the knowledge of a framework that helps provide easy access to databases, that is, Entity Framework has become a necessity. This book will provide .NET developers with this knowledge and guide them through working efficiently with data using Entity Framework Core. You will start off by learning how to efficiently use Entity Framework in practical situations. You will gain a deep understanding of mapping properties and find out how to handle validation in Entity Framework. The book will then explain how to work with transactions and stored procedures along with improving Entity Framework using query libraries. Moving on, you will learn to improve complex query scenarios and implement transaction and concurrency control. You will then be taught to improve and develop Entity Framework in complex business scenarios. With the concluding chapter on performance and scalability, this book will get you ready to use Entity Framework proficiently.
Table of Contents (10 chapters)
close
close
9
Index

Getting entities from the local cache


When using an Object-Relational Mapper (ORM) such as Entity Framework, a very important feature to keep in mind is this: when an entity is materialized as the result of executing a query, it is stored in an in-memory cache. This is usually referred to as First Level Cache, but Martin Fowler gave it another name: Identity Map. In its definition, he said that the purpose of this pattern is to ensure that each object gets loaded only once, by keeping every loaded object in a map. If you think of it, it is a good thing performance-wise, because there's always a cost in instantiating classes and hydrating them from the records obtained from the data source. This is used internally by ORMs, but we can also make use of it to our benefit.

Getting ready

We will be using the NuGet Package Manager to install the Entity Framework Core 1 package, Microsoft.EntityFrameworkCore. We will also be using a SQL Server database for storing the data, so we will also need Microsoft...

CONTINUE READING
83
Tech Concepts
36
Programming languages
73
Tech Tools
Icon Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.
Icon Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.
Icon 50+ new titles added per month and exclusive early access to books as they are being written.
Entity Framework Core Cookbook
notes
bookmark Notes and Bookmarks search Search in title playlist Add to playlist download Download options font-size Font size

Change the font size

margin-width Margin width

Change margin width

day-mode Day/Sepia/Night Modes

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY

Submit Your Feedback

Modal Close icon
Modal Close icon
Modal Close icon