How can I perform database queries in Node.js?

How can I perform database queries in Node.js?

You can use libraries like Sequelize or Mongoose for ORM, or the native 'mysql' package for direct queries.

Can you show me an example using Sequelize?

Sure! First, install Sequelize and a database driver. Then, you can define models and perform queries like this: User.findAll().

What if I want to use MongoDB instead?

For MongoDB, you can use Mongoose. Define a schema and use methods like Model.find() to query your database.

Are there any performance considerations I should be aware of?

Yes, always use indexes for faster queries, and consider pagination for large datasets to improve performance.