Q&A

Which is better code first or database first in Entity Framework?

Which is better code first or database first in Entity Framework?

Versioning databases is hard, but with code first and code first migrations, it’s much more effective. Because your database schema is fully based on your code models, by version controlling your source code you’re helping to version your database.

Is repository pattern needed with Entity Framework?

No, the repository/unit-of-work pattern (shortened to Rep/UoW) isn’t useful with EF Core. A better solution is to use EF Core directly, which allows you to use all of EF Core’s feature to produce high-performing database accesses.

Why we use repository pattern in MVC?

The repository pattern is intended to create an abstraction layer between the data access layer and the business logic layer of an application. It is a data access pattern that prompts a more loosely coupled approach to data access.

Should I use repository pattern?

The Repository pattern makes it easier to test your application logic. The Repository pattern allows you to easily test your application with unit tests. Remember that unit tests only test your code, not infrastructure, so the repository abstractions make it easier to achieve that goal.

What is the advantage of code first approach in Entity Framework?

The main advantages in utilizing the Code First approach is that the developer has complete control on the relations between the entities (somthing which is not utterly provided by the Model first approach because of automatically generated code) and in the mean time still use an in-memory model that the EF runtime can …

What is code first in Entity Framework?

Code-First is mainly useful in Domain Driven Design. In the Code-First approach, you focus on the domain of your application and start creating classes for your domain entity rather than design your database first and then create the classes which match your database design.

What is repository pattern in Entity Framework?

Repository Pattern is used to create an abstraction layer between data access layer and business logic layer of an application. Repository directly communicates with data access layer [DAL] and gets the data and provides it to business logic layer [BAL].

What is a DbContext?

A DbContext instance represents a combination of the Unit Of Work and Repository patterns such that it can be used to query from a database and group together changes that will then be written back to the store as a unit. DbContext is conceptually similar to ObjectContext.

How is the repository pattern used in the Entity Framework?

The Repository Pattern allows us to create an abstraction layer between the data access layer and the business logic layer of an application. So, this Data Access Pattern offers a more loosely coupled approach to data access.

How is data access pattern used in Entity Framework?

So, this Data Access Pattern offers a more loosely coupled approach to data access. So, we are able to create the data access logic in a separate class, called a Repository, which has the responsibility of persisting the application’s business model.

How does Entity Framework work with a database?

There are three approaches in Entity Framework to work with database and these are Database First, Model First and Code First. I always prefer to work with Code First approach. It is a part of Entity Framework which uses POCO [Plan Old CLR Object]. Basically it removes to write or doing some extra effort to write data access code.

Do you follow schema modeling in Entity Framework?

So considering testability as important principles, one can easily implement Repository. Repository encourages a more loosely coupled approach to access our data from the database. The code becomes cleaner and maintainable and highly extensible. Do you follow schema modeling??. EFCore works very well for Database First approach.