Titlebook: Beginning Entity Framework Core 5; From Novice to Profe Eric Vogel Book 2021 Eric Vogel 2021 Entity Framework..NET Core..NET.SQL Server.ASP

Monolithic

和平

Intervention

Integrativ-Prozessuales Marketing often referred to as soft delete and hard delete. A soft delete is flagging a record as deleted and can be achieved by doing a database update and setting a flag to mark a record as deleted. A hard delete is removing the record from the database, and it can no longer be retrieved afterward. In this

陳舊

enterprise

浮夸

Database Contextontext class allows you to interface with your database store. Through DbContext, you can perform create, read, update, and delete operations. In addition, you can perform aggregations such as sum, max, average, and count.

heirloom

Creating a Database from Code those instructions and having them be interpreted by Entity Framework Core 5 to create your database is as simple as creating an initial migration and running that migration using Visual Studio. We will primarily be using the Microsoft SQL Server provider for Entity Framework Core in this book and

Adenoma

Getting Datawe use LINQ either through its Query syntax or the Method syntax. I tend to use a mix of the two syntaxes to get my desired data. I will first cover the Query syntax and then explain the Method syntax. After we go over the basics of LINQ, I will show you how to test Entity Framework Core against our

比賽用背帶

Deleting Data often referred to as soft delete and hard delete. A soft delete is flagging a record as deleted and can be achieved by doing a database update and setting a flag to mark a record as deleted. A hard delete is removing the record from the database, and it can no longer be retrieved afterward. In this

小畫像

Navigation Propertiesion properties. We have already created half of the code to create these relationships earlier in the book when we mapped one-to-many addresses to a person record. I will now show how to complete the one-to-many mapping between Person and Address entities. I will also cover how to add a many-to-many