theory.md

The practice will explain everything you need to know, but here are some links to know more

Getting started with ASP.NET Core MVC and Entity Framework Core using Visual Studio (1 of 10)

https://docs.microsoft.com/en-us/aspnet/core/data/ef-mvc/intro

Migrations - EF Core with ASP.NET Core MVC tutorial (4 of 10)

https://docs.microsoft.com/en-us/aspnet/core/data/ef-mvc/migrations

Dependency Injection

https://docs.microsoft.com/en-us/aspnet/core/fundamentals/dependency-injection

Custom Policy-Based Authorization

https://docs.microsoft.com/en-us/aspnet/core/security/authorization/policies

Resource Based Authorization

https://docs.microsoft.com/en-us/aspnet/core/security/authorization/resourcebased