Node.js: Knex vs ORMs

What are the main differences between Knex.js and traditional ORMs in Node.js?

Knex.js is a SQL query builder, while ORMs like Sequelize or TypeORM provide an abstraction over database interactions. Knex gives you more control over SQL queries, whereas ORMs simplify data manipulation with models.

Which one is better for performance?

Knex.js can offer better performance since it allows for more optimized SQL queries. ORMs may introduce overhead due to their abstraction, but they can speed up development time.

Can you give me an example of using Knex.js?

Sure! Here's a simple example:

const knex = require('knex')({
  client: 'pg',
  connection: {
    host: '127.0.0.1',
    user: 'myuser',
    password: 'mypassword',
    database: 'mydb'
  }
});

knex('users').select('*').then(rows => console.log(rows));

What are the advantages of using an ORM?

ORMs provide a higher level of abstraction, making it easier to work with databases without writing raw SQL. They also offer features like migrations, relationships, and validations, which can speed up development.