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MikroORM vs Sequelize: What are the differences?
1. Data Manipulation and Querying: MikroORM and Sequelize differ in their approach to data manipulation and querying. MikroORM uses an object-based approach, where entities are defined as classes with properties and methods, allowing for easier and more intuitive data manipulation. On the other hand, Sequelize uses a query-based approach, where SQL queries are constructed and executed directly, providing more flexibility but potentially sacrificing some ease of use.
2. Associations and Relationships: Another key difference between MikroORM and Sequelize is their handling of associations and relationships between entities. MikroORM provides a more intuitive way of defining and working with associations through decorators and entity metadata. Sequelize, on the other hand, allows for more fine-grained control over associations through the use of methods and options.
3. Schema Synchronization: MikroORM and Sequelize also differ in their approach to schema synchronization. MikroORM provides automatic schema migration based on entity metadata, making it easier to keep the database schema in sync with the application code. Sequelize, on the other hand, requires manual migration scripts to be written and executed, providing more control over the migration process but potentially adding complexity.
4. Database Support: MikroORM and Sequelize differ in the range of databases they support. MikroORM is primarily designed for working with relational databases such as MySQL, PostgreSQL, and SQLite, while Sequelize supports a wider range of databases including not only relational databases but also NoSQL databases like MongoDB.
5. Code Size and Complexity: MikroORM and Sequelize also differ in the code size and complexity they introduce to the application. MikroORM aims to provide a lightweight and simple ORM solution, with fewer lines of code and a simpler API. Sequelize, on the other hand, offers a more feature-rich and powerful ORM with a larger codebase and potentially more complex API.
6. Community and Ecosystem: Lastly, MikroORM and Sequelize differ in terms of their community and ecosystem support. Sequelize has been around for longer and has a larger user base and community, which means there are more resources and plugins available. MikroORM, although relatively new, has been gaining popularity and has an active community, but may have a smaller ecosystem compared to Sequelize.
In summary, MikroORM and Sequelize differ in their approach to data manipulation and querying, handling of associations and relationships, schema synchronization, database support, code size and complexity, and community and ecosystem support.
Pros of MikroORM
- Typescript5
- Supports both SQL and NoSQL4
- Powered by Unit of Work and Identity Map3
- Allows multiple ways to define entities3
- DRY Entities3
- Implicit Transactions2
- SQL layer built on top of Knex2
- EntityGenerator to reverse engineer existing database2
Pros of Sequelize
- Good ORM for node.js42
- Easy setup31
- Support MySQL & MariaDB, PostgreSQL, MSSQL, Sqlite21
- Open source14
- Free13
- Promise Based12
- Recommend for mongoose users4
- Typescript3
- Atrocious documentation, buggy, issues closed by bots3
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Cons of MikroORM
Cons of Sequelize
- Docs are awful30
- Relations can be confusing10