What is ObjectContext?
ObjectContext is a class that manages all the database operations, like database connection, and manages various entities of the Entity Model. We can say that ObjectContext is the primary class for accessing or working together with entities that are defined in the conceptual model.
Which method should you call on the ObjectContext to ensure that the orders are added to the local data store?
AddObject() Call AddObject on the ObjectContext to add the object to the object context.
Is Entity Framework an API?
Here, you will see an overview of how entity framework works. Entity Framework API (EF6 & EF Core) includes the ability to map domain (entity) classes to the database schema, translate & execute LINQ queries to SQL, track changes occurred on entities during their lifetime, and save changes to the database.
What is fluent API in MVC?
Fluent API is an advanced way of specifying model configuration that covers everything that data annotations can do in addition to some more advanced configuration not possible with data annotations.
What is EF model?
An EF model stores the details about how application classes and properties map to database tables and columns. There are two main ways to create an EF model: Using Code First: The developer writes code to specify the model.
What is the code first approach?
In the ASP.NET MVC framework, the code-first approach is a development model where you first write the code that creates the data access layer, then you write the code that creates the controllers and views. In the code-first approach, you create a model, which is a class that represents the data in the application.
Is Entity Framework an ORM?
Entity Framework Core is what’s known as an Object Relational Mapper (ORM). Created by Microsoft, the library allows developers to work abstractly with their database.
Is Entity Framework a library?
Entity Framework is an open-source ORM framework for . NET applications supported by Microsoft. It enables developers to work with data using objects of domain specific classes without focusing on the underlying database tables and columns where this data is stored.
What is fluent API used for?
Entity Framework Fluent API is used to configure domain classes to override conventions. EF Fluent API is based on a Fluent API design pattern (a.k.a Fluent Interface) where the result is formulated by method chaining. In Entity Framework Core, the ModelBuilder class acts as a Fluent API.
What is EDM in EF?
The Entity Data Model (EDM) is an extended version of the Entity-Relationship model which specifies the conceptual model of the data using various modelling technique. It also refers to a set of concepts that describe data structure, regardless of its stored form.
Is EF an ORM?
Entity Framework (EF) is an open source object–relational mapping (ORM) framework for ADO.NET.
How does fluent user interface work?
In software engineering, a fluent interface is an object-oriented API whose design relies extensively on method chaining. Its goal is to increase code legibility by creating a domain-specific language (DSL). The term was coined in 2005 by Eric Evans and Martin Fowler.
What is Csdl SSDL and MSL in Entity Framework?
CSDL (Conceptual Schema definition language) is the conceptual abstraction which is exposed to the application. SSDL (Storage schema definition language) defines the mapping with your RDBMS data structure. MSL ( Mapping Schema language ) connects the CSDL and SSDL. CSDL, SSDL and MSL are actually XML files.