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In order to configure Ruby on Rails to create your web application with PostgreSQL as a database, you will first install the database onto your machine. This tutorial will use version 2.6.3 of Ruby and 5.2.3 of Rails for information on the latest versions, check out the official sites for Ruby and Rails. To set this up, follow our guide on How To Install Ruby on Rails with rbenv on macOS. This tutorial has been tested on macOS 10.14 Mojave.Ī Ruby on Rails development environment installed on your macOS machine. One computer or virtual machine with macOS installed, with administrative access to that machine and an internet connection. You will install and configure PostgreSQL, and then test your setup by creating a Rails application that uses PostgreSQL as its database server.

In this tutorial, you will set up a Ruby on Rails development environment connected to a PostgreSQL database on a local macOS machine. In order to configure your Ruby on Rails setup to use PostgreSQL, you will need to perform a few additional steps to get it up and running.

However, for highly complex applications that need more reliable data integrity and programmatic extensibility, a PostgreSQL database will be a more robust and flexible choice. SQLite is a lightweight, portable, and user-friendly relational database that performs especially well in low-memory environments, and will work well in many cases. When using the Ruby on Rails web framework, your application is set up by default to use SQLite as a database.