Select the Leavedetail entity, right-click and select the option “Include Related” to include the employee entities in the second diagram. EF allows developers to work with a higher level of abstraction, enabling faster development by reducing the need for writing low-level data access code. It comprises of the tables, views, relationship keys and stored procedures. It is derived from Object-Relational Mapping programming technique, outlines the entities and its relationship with each other.

I have always been taught that you work from the ground up, get your foundations right and everything else will follow. You’ll see that the new Categories and Products tables are added in the SampleDB database after running the application. Add the connection string to the web.config for accessing the database at run time.


Writing raw SQL might be necessary for certain complex scenarios. EF might introduce performance overhead due to abstraction layers, resulting in slightly slower performance compared to hand-tuned SQL queries in some scenarios. It provides unique syntax (LINQ/Yoda) for all object queries, both inside and outside of the database.

advantages of entity framework

Link the entities using the ‘Association from‘ Toolbox to complete the model design. In the Model First approach, the database model is created first using the ORM designer in Visual Studio. Once the model consisting of entities and relationships has been designed, the physical database will be generated from the model. Entity Framework provides three different approaches to deal with the model, and each one has its own pros and cons. Ambily Kavumkal Kamalasanan discusses the advantages of the Model, Database, and Code First approaches to modeling in Entity Framework 5.0. Entity Framework still has its share of issues and is not widely accepted yet – but through contributing to its ongoing development the community can make it more stable and increase its adoption.

Advantages and disadvantages of Entityframework.

So, in this article, we discuss ADO.NET and Entity Framework along with the key differences between them. So, whenever we will start developing any application, we need to take the right decision to choose one of them. If we want to achieve more control over SQL commands and operations with the help of raw SQL Queries, then ADO.NET will be a great choice to start work with. Whereas if we want to develop the application in a much faster way with clear code maintainability, then Entity Framework will be the better choice. The ADO.NET model utilizes XML to store the data in the cache and transfer the data among applications. Datasets use XML schemas to store and transfer data among applications.

It saves data stored in the properties of business entities and also retrieves data from the database and converts it to business entities objects automatically. Entity Framework will execute the relevant query in the database and then materialize results into instances of your domain objects for you to work within your app. Entity Framework is an open-source framework for .NET applications. Microsoft introduced Entity Framework first time in the .NET framework 3. It acts like a bridge between an application and the connected data sources.


Another new feature introduced in EF 5.0 is to allow the use of multiple diagrams for a single model. We can move selected entities to another diagram in order to reduce the complexity of the main diagram. Select the entities by holding shift key and select the “Move to new diagram” option from the context menu.

advantages of entity framework

Additionally, they don’t need to focus on the underlying database tables or columns where the actual data will store. Entity framework enables the developer to focus on the domain objects and its core working rather than the architecture of database. A data provider is a set of factors, similar as Connection, Command, DataAdapter, and DataReader.

thoughts on “Advantages and Disadvantages of Entity Framework”

The DataSet component objects normally use XML Schema to capture and return data between the Applications and the Data Providers. We can represent single or multiple views of a dataset with the help of DataView and DataViewManager objects. In our applications, if required we can directly use a DataView or DataViewManager component entity framework meaning with data-bound controls like DataGrid or DataList. This will generate the entity framework code and database context classes corresponding to the defined model. We can use these new classes from the business layer to perform various database operations. Verify the code generated under the Modelname.Designer.cs file.

Hardcode coders love to code the model using the Code First approach. In this approach, the database is used for storing the data only. One of the advantages of the Code First approach is the same class is used for defining the database table structure and business object. Any changes in the class affect both the business object and the database table. Also, if we have any plans to deploy the project into Azure with Azure Storage, we can reuse the classes to define the Azure Storage objects. When considering whether to use Entity Framework or another data access approach, it’s crucial to weigh these advantages and disadvantages against the specific needs and requirements of your application.

What kind of Experience do you want to share?

We only need to connect with a data source when we are reading and writing the data to a data source. With ADO.NET, we can use SQL queries and stored procedures to perform the read, write, update and delete operation from a data source. We can use the SQL syntax with the help of ADO.NET Command objects and it always returns data in the form of DataReader or DataSet objects. So that, after the connection closes, we can use the DataSet objects to work for the data and after completing the work on our computer, we can connect the data source again when we need to update the data source.

Instead of adding each value, we can refer an external type using the ‘Reference external type‘ option. This will generate the DDL statements, and the generated script will be added to the solution as a script file. In order to create the model, you should create an empty ASP.Net project in Visual Studio and add a new ADO.Net Entity Data Model, which for this example we’ll call ModelSample. Developers might have limited control over the generated SQL queries, leading to inefficiencies in query execution plans in some cases. Complex queries might not be efficiently translated into SQL, leading to suboptimal database queries.

I was watching some videos and tutorials for EF 4.1, and I do not understand any benefit of CodeFirst (except some if DB is very small 3-4 tables and I am lazy for creating DB first). Here is a simple comparison of the advantages all three approaches. To try this out, we’ll insert few records to the database and run the application again. In code, you might want to work with objects in an object oriented fashion.

advantages of entity framework

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