Entity Framework was first released in 2008, Microsoft's primary means of interacting between .NET applications and relational databases. Entity Framework is an Object Relational Mapper (ORM) which is a type of tool that simplifies mapping between objects in your software to the tables and columns of a relational database.

The Entity Framework enables developers to work with data in the form of domain-specific objects and properties, such as customers and customer addresses, without having to concern themselves with the underlying database tables and columns where this data is stored. With the Entity Framework, developers can work at a higher level of abstraction when they deal with data and can create and maintain data-oriented applications with less code than in traditional applications. Because the Entity Framework is a component of the .NET Framework, Entity Framework applications can run on any computer on which the .NET Framework starting with version 3.5 SP1 is installed.

Entity Framework is an ORM and ORMs are aimed to increase the developer’s productivity by reducing the redundant task of persisting the data used in the applications.

Entity Framework can generate the necessary database commands for reading or writing data in the database and execute them for you.

If you're querying, you can express your queries against your domain objects using LINQ to entities.

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.

There are other ORMs in the marketplace such as NHibernate and LLBLGen Pro. Most ORMs typically map domain types directly to the database schema.

A longstanding and common design approach when building an application or service is the division of the application or service into three parts: a domain model, a logical model, and a physical model. The domain model defines the entities and relationships in the system that is being modeled. The logical model for a relational database normalizes the entities and relationships into tables with foreign key constraints. The physical model addresses the capabilities of a particular data engine by specifying storage details such as partitioning and indexing.

The physical model is refined by database administrators to improve performance, but programmers writing application code primarily confine themselves to working with the logical model by writing SQL queries and calling stored procedures. Domain models are generally used as a tool for capturing and communicating the requirements of an application, frequently as inert diagrams that are viewed and discussed in the early stages of a project and then abandoned. Many development teams skip creating a conceptual model and begin by specifying tables, columns, and keys in a relational database.

The Entity Framework gives life to models by enabling developers to query entities and relationships in the domain model (called a conceptual model in the Entity Framework) while relying on the Entity Framework to translate those operations to data source–specific commands. This frees applications from hard-coded dependencies on a particular data source.

When working with Code First, the conceptual model is mapped to the storage model in code. The Entity Framework can infer the conceptual model based on the object types and additional configurations that you define. The mapping metadata is generated during run time based on a combination of how you defined your domain types and additional configuration information that you provide in code. Entity Framework generates the database as needed based on the metadata. For more information, see Creating a Model.

When working with the Entity Data Model Tools, the conceptual model, the storage model, and the mappings between the two are expressed in XML-based schemas and defined in files that have corresponding name extensions:

Conceptual schema definition language (CSDL) defines the conceptual model. CSDL is the Entity Framework's implementation of the Entity Data Model. The file extension is .csdl.

Store schema definition language (SSDL) defines the storage model, which is also called the logical model. The file extension is .ssdl.

Mapping specification language (MSL) defines the mappings between the storage and conceptual models. The file extension is .msl.

The storage model and mappings can change as needed without requiring changes to the conceptual model, data classes, or application code. Because storage models are provider-specific, you can work with a consistent conceptual model across various data sources.

The Entity Framework uses these model and mapping files to create, read, update, and delete operations against entities and relationships in the conceptual model to equivalent operations in the data source. The Entity Framework even supports mapping entities in the conceptual model to stored procedures in the data source. For more information, see CSDL, SSDL, and MSL Specifications.

Following are the basic features of the Entity Framework. This list is created based on the most notable features and also from frequently asked questions about Entity Framework.

Entity Framework is being developed as an Open Source product.

Entity Framework is no longer tied or dependent on the .NET release cycle.

Works with any relational database with a valid Entity Framework provider.

SQL command generation from LINQ to Entities.

Entity Framework will create parameterized queries.

Allows to insert, update and delete command generation.

Works with a visual model or with your classes.

Entity Framework has stored Procedure Support.

In this blog, we will discuss the above Entity Framework.

Entity Framework - Overview

PHP started as a small open source project that evolved as more and more people found out how useful it was. Rasmus Lerdorf unleashed the first version of PHP way back in 1994.

PHP is a recursive acronym for "PHP: Hypertext Preprocessor".

PHP is a server-side scripting language that is embedded in HTML. It is used to manage dynamic content, databases, session tracking, even build entire e-commerce sites.

It is integrated with several popular databases, including MySQL, PostgreSQL, Oracle, Sybase, Informix, and Microsoft SQL Server.

PHP is pleasingly zippy in its execution, especially when compiled as an Apache module on the Unix side. The MySQL server, once started, executes even very complex queries with huge result sets in record-setting time.

PHP supports a large number of major protocols such as POP3, IMAP, and LDAP. PHP4 added support for Java and distributed object architectures (COM and CORBA), making n-tier development a possibility for the first time.

PHP is forgiving: PHP language tries to be as forgiving as possible.

Angular is an open-source framework that is TypeScript based and used to build applications for desktops and websites. The Angular project was directed by the Angular Team at Google and built with the aid of a large community of businesses and individuals. Angular is also known as “Angular 2+” or “Angular v2 and above” because it is a complete rebuild of AngularJS (Angular 1). It was released in 2016 under an MIT license and is mainly used for front-end web development. Angular is component-based, and this internet framework can help you to build scalable website applications efficiently. It also offers several built-in libraries that cover various important features such as document control, client-server communication, routing, and more.

In comparing PHP vs Angular, it is critical to understand Angular and PHP before analyzing them. This article will help clarify the debate between PHP and Angular and will assist you in selecting the most appropriate technology for your next project. 

Server-Side Scripting V. Client-Side Scripting: PHP Vs Angular

Angular is a client-side framework that operates on the smartphones, laptops, desktops of the users instead of servers. Thus, it requires a programming language for server-side scripting.PHP is a server-side scripting programming language that indicates that the PHP code is written on a web server, which results in an HTML response. PHP enables you to send dynamic content to clients, most commonly from a database as a server-side programming language. It could be useful in construction-related e-commerce apps.

Due to the fact, angular is a customer-side net utility framework, it executes its code in a browser in preference to a database server or software server. Not like javascript, angular doesn’t have any form of direct get admission to any neighborhood computer, and consequently, the usage of angular with a database isn't always possible at once. Alternatively, PHP works nicely with a variety of databases, which include MySQL and MariaDB. Moreover, a slew of personal home page frameworks allows for simple database interplay, permitting you to discover, kind, and filter records earlier than turning in it to the patron.

Threading may be defined because of the commands or the directions which might be given to a programming language. A thread is a component of a pc application that may run on its very own. A single thread functions like a sequential application with a starting, execution, and conclusion. It is no longer a whole program, but it does execute within a selected part of the device. Multi-threaded approaches, however, can drastically improve app functioning. This is due to the fact they may perform more than one task at an identical time within a software program. Internet browsers are a perfect instance of multi-threaded software programs. You could navigate a web web page as the browser downloads a photo, prints pages within the backdrop as you get sparkling pages, or simultaneously play songs and animations. Threads aren’t to be had in angular to help you arrange your code and run concurrent sports. However, it works in a browser that supports javascript on the customer cease. You could make use of net employees who are background threads that run in parallel with the principle threads to do in-depth computations and assist in the development of program functionality. Angular CLI lets you create and paint with online personnel. Hypertext Preprocessor is a multi-threaded programming language that suggests its capability of handling multi-tasks in one go. For the reason of multi-threading in PHP, there may be additionally the presence of an object-oriented API referred to as “threads”, which offers extra tools. But as an alternative, you furthermore might have the choice of the use of parallel. Threaded gadgets, threads, and people are as a result easy to learn, write, assemble, synchronize, and run in personal home page tasks.

Flexibility And Scalability: PHP Vs Angular

Modern packages have to be able to scale up or down in reaction to converting occasions and purchaser needs. You may start with a simple net web page or app, but you’ll always need to build it up to take your organization to new heights. Scalability also can make your app exchange and work well even if there are numerous people around, consisting of in the course of vacations or height seasons. Both personal home page and angular are capable of scaling and strengthening your packages. The high scalability function of angular makes it popular for massive use for the development of websites and scale applications. Angular is also evolved in typescript, which aids you in finding and doing away with not unusual faults at the same time as also making your code clearer and better. With their robust shape and effective cli, angular scales are popular. Further, angular offers basic options in the form of modules and comes. It’s probably which you’ll want to scale your apps and add extra capability. In reaction to the converting needs of the customers and the converting trends, PHP has much less flexibility in comparison to angular. The personal home page helps an extensive variety of frameworks, which include laravel, Zend, Symfony, Codeigniter, CakePHP, and others.

In this blog, we will discuss the difference between PHP vs Angular.

PHP vs Angular

Entity Framework is an open-source object-relational mapper framework for .NET applications supported by Microsoft. It increases the developer’s productivity as 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. It eliminates the need for most of the data-access code which is used to interact with the database that developers usually need to write. It provides an abstract level to the developers to work with a relational table and columns by using the domain-specific object. It also reduces the code size of the data-specific applications and also the readability of the code increases by using it. This is a new technology for accessing the data for Microsoft applications. The latest version for Entity Framework is 6.0.

The following figure describes where the Entity Framework is present in your application.

The above figure represents how an entity framework interacts with the domain class and database. It provides a connection between the business entity and data tables in the database. 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.

EF Core is a cross-platform framework that can run on Windows, Linux, and Mac.

EF allows us to use LINQ queries (C#/VB.NET) to retrieve data from the underlying database. The database provider will translate these LINQ queries to the database-specific query language (e.g. SQL for a relational database). EF also allows us to execute raw SQL queries directly to the database.

EF keeps track of changes that occurred to instances of your entities (Property values) that need to be submitted to the database.

EF performs automatic transaction management while querying or saving data. It also provides options to customize transaction management.

 EF follows conventions over the configuration programming pattern and includes a set of default rules which automatically configure the EF model.

 EF provides a set of migration commands that can be executed on the NuGet Package Manager Console or the Command Line Interface to create or manage underlying database Schema.

EF (Entity Framework) creates an EDM (Entity Data Model) based on POCO (Plain Old CLR Object) entities with getting/set properties of different data types. It uses this model when querying or saving entity data to the underlying database.

Entity Framework executes the INSERT, UPDATE, and DELETE commands to the database based on the changes that occurred to the entities when we call the "SaveChanges()" method. Entity Framework also provides the asynchronous "SaveChangesAsync()" method.

EF uses Optimistic Concurrency by default to protect overwriting changes made by another user since data was fetched from the database.

EF includes the first level of caching out of the box. So, repeated querying will return data from the cache instead of hitting the database.

EF allows us to configure the EF model by using data annotation attributes or Fluent API to override default conventions.

Microsoft introduced Entity Framework in 2008 with .NET Framework 3.5. Since then, it released many versions of Entity Framework. Currently, there are two latest versions of Entity Framework: EF 6 and EF Core. The following table lists the important difference between EF 6 and EF Core.

Microsoft provides a free version of visual studio which also contains SQL Server. It can be downloaded from virtual studio website.

Step 1 − Once downloading is complete, run the installer. The following dialog will be displayed.

Step 2 − Click on the Install button and it will start the installation process.

Step 3 − Once the installation process is completed successfully, you will see the following dialog. Close this dialog and restart your computer if required.

Step 4 − Open Visual Studio from Start Menu which will open the following dialog. It will be a while for the first time for preparation.

Step 5 − Once all is done you will see the main window of Visual studio.

Let’s create a new project from File → New → Project

Step 1 − Select Console Application and click the OK button.

Step 2 − In solution Explorer, right-click on your project.

Step 3 − Select Manage NuGet Packages as shown in the above image, which will open the following window in Visual Studio.

Step 4 − Search for Entity Framework and install the latest version by pressing the install button.

Step 5 − Click Ok. Once installation is done, you will see the following message in your output window.

You are now ready to start your application.

Hey guys, today we'll get to know about Entity Framework. Let's see...

entity framework

Trending Blogposts on entity framework

Entity Framework - Overview

PHP vs Angular

About Entity Framework

Popular Discussions on entity framework

PRODUCTS

QUICK LINKS

LEGAL

entity framework

Trending Blogposts on entity framework

Entity Framework - Overview

PHP vs Angular

About Entity Framework

Popular Discussions on entity framework