Entity Framework vs Sequelize

Overview

Sequelize

Stacks1.0K

Followers1.4K

Votes143

GitHub Stars30.2K

Forks4.3K

Entity Framework

Stacks2.1K

Followers240

Votes19

Entity Framework vs Sequelize: What are the differences?

Introduction

In this section, we will compare and highlight the key differences between Entity Framework and Sequelize, which are popular Object-Relational Mapping (ORM) libraries used in different programming languages.

Database Support: A major difference between Entity Framework and Sequelize lies in the databases they support. Entity Framework is primarily used with Microsoft SQL Server, while Sequelize is compatible with multiple databases such as MySQL, PostgreSQL, SQLite, and MSSQL. This means that Sequelize offers more flexibility when choosing the database for your application.
Programming Language: Another significant difference is the programming language used. Entity Framework is designed for use with Microsoft's .NET framework and primarily utilizes C# for programming. In contrast, Sequelize is written in JavaScript and is used with Node.js, making it an ideal choice for developers working with JavaScript-based applications.
Query Syntax: The syntax used to write database queries also differs between Entity Framework and Sequelize. Entity Framework uses LINQ (Language-Integrated Query), which allows developers to write queries as part of their code using language constructs. Sequelize, on the other hand, uses plain JavaScript syntax to define queries, making it more familiar to JavaScript developers.
Maturity and Ecosystem: Entity Framework has been around for a longer time and has a more mature ecosystem compared to Sequelize. It has a large community of developers, extensive documentation, and a wide range of resources available. Sequelize, while also popular, may have a slightly smaller community and fewer resources comparatively. This can impact the availability of plugins, integrations, and community support.
Modeling Relationships: The way relationships between database tables are defined also differs between Entity Framework and Sequelize. Entity Framework uses a code-first approach, where relationships are defined within the code by using attributes or fluent API calls. Sequelize, on the other hand, relies on a model-first approach, where relationships are defined within the models themselves.
Sequelize Migrations: Sequelize provides built-in support for database migrations, allowing developers to easily manage changes to the database schema over time. Entity Framework also supports migrations, but the workflow and tooling around it may differ depending on the version being used.

In Summary, Entity Framework and Sequelize differ in their database support, programming language, query syntax, maturity and ecosystem, modeling relationships, and support for migrations. These differences make each library suitable for specific scenarios and developer preferences.

Share your Stack

Help developers discover the tools you use. Get visibility for your team's tech choices and contribute to the community's knowledge.

View Docs

CLI (Node.js)

Manual

Detailed Comparison

Sequelize	Entity Framework
Sequelize is a promise-based ORM for Node.js and io.js. It supports the dialects PostgreSQL, MySQL, MariaDB, SQLite and MSSQL and features solid transaction support, relations, read replication and more.	It is an object-relational mapper that enables .NET developers to work with relational data using domain-specific objects. It eliminates the need for most of the data-access code that developers usually need to write.
-	ORM, Work with relational data using domain-specific objects;Eliminates the need for most of the data-access code
Statistics
GitHub Stars 30.2K	GitHub Stars -
GitHub Forks 4.3K	GitHub Forks -
Stacks 1.0K	Stacks 2.1K
Followers 1.4K	Followers 240
Votes 143	Votes 19
Pros & Cons
Pros 42 Good ORM for node.js 31 Easy setup 21 Support MySQL & MariaDB, PostgreSQL, MSSQL, Sqlite 14 Open source 13 Free Cons 30 Docs are awful 10 Relations can be confusing	Pros 6 LINQ 3 Object Oriented 3 Strongly Object-Oriented 2 Code first approach 2 Multiple approach (Model/Database/Code) first
Integrations
SQLite Microsoft SQL Server Node.js PostgreSQL MySQL MariaDB io.js	Firebird .NET Oracle PostgreSQL SQLite MySQL Microsoft SQL Server IBM DB2

What are some alternatives to Sequelize, Entity Framework?

Prisma

Prisma is an open-source database toolkit. It replaces traditional ORMs and makes database access easy with an auto-generated query builder for TypeScript & Node.js.

Hibernate

Hibernate is a suite of open source projects around domain models. The flagship project is Hibernate ORM, the Object Relational Mapper.

Doctrine 2

Doctrine 2 sits on top of a powerful database abstraction layer (DBAL). One of its key features is the option to write database queries in a proprietary object oriented SQL dialect called Doctrine Query Language (DQL), inspired by Hibernates HQL.

MikroORM

TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Supports MongoDB, MySQL, MariaDB, PostgreSQL and SQLite databases.

peewee

A small, expressive orm, written in python (2.6+, 3.2+), with built-in support for sqlite, mysql and postgresql and special extensions like hstore.

MyBatis

It is a first class persistence framework with support for custom SQL, stored procedures and advanced mappings. It eliminates almost all of the JDBC code and manual setting of parameters and retrieval of results. It can use simple XML or Annotations for configuration and map primitives, Map interfaces and Java POJOs (Plain Old Java Objects) to database records.

Entity Framework Core

It is a lightweight, extensible, open source and cross-platform version of the popular Entity Framework data access technology. It can serve as an object-relational mapper (O/RM), enabling .NET developers to work with a database using .NET objects, and eliminating the need for most of the data-access code they usually need to write.

SQLAlchemy

SQLAlchemy is the Python SQL toolkit and Object Relational Mapper that gives application developers the full power and flexibility of SQL.

Dapper

It is an object-relational mapping product for the Microsoft.NET platform: it provides a framework for mapping an object-oriented domain model to a traditional relational database.

NHibernate

It is a mature, open source object-relational mapper for the .NET framework. It's actively developed, fully featured and used in thousands of successful projects.

Related Comparisons

Entity Framework vs Sequelize: What are the differences?

Introduction

Database Support: A major difference between Entity Framework and Sequelize lies in the databases they support. Entity Framework is primarily used with Microsoft SQL Server, while Sequelize is compatible with multiple databases such as MySQL, PostgreSQL, SQLite, and MSSQL. This means that Sequelize offers more flexibility when choosing the database for your application.
Programming Language: Another significant difference is the programming language used. Entity Framework is designed for use with Microsoft's .NET framework and primarily utilizes C# for programming. In contrast, Sequelize is written in JavaScript and is used with Node.js, making it an ideal choice for developers working with JavaScript-based applications.
Query Syntax: The syntax used to write database queries also differs between Entity Framework and Sequelize. Entity Framework uses LINQ (Language-Integrated Query), which allows developers to write queries as part of their code using language constructs. Sequelize, on the other hand, uses plain JavaScript syntax to define queries, making it more familiar to JavaScript developers.
Maturity and Ecosystem: Entity Framework has been around for a longer time and has a more mature ecosystem compared to Sequelize. It has a large community of developers, extensive documentation, and a wide range of resources available. Sequelize, while also popular, may have a slightly smaller community and fewer resources comparatively. This can impact the availability of plugins, integrations, and community support.
Modeling Relationships: The way relationships between database tables are defined also differs between Entity Framework and Sequelize. Entity Framework uses a code-first approach, where relationships are defined within the code by using attributes or fluent API calls. Sequelize, on the other hand, relies on a model-first approach, where relationships are defined within the models themselves.
Sequelize Migrations: Sequelize provides built-in support for database migrations, allowing developers to easily manage changes to the database schema over time. Entity Framework also supports migrations, but the workflow and tooling around it may differ depending on the version being used.

Entity Framework vs Sequelize

Overview

Entity Framework vs Sequelize: What are the differences?