How to Use PostgreSQL with Your Ruby on Rails Application on Ubuntu 16.04

Learn how to use PostgreSQL with your Ruby on Rails application, instead of the default SQLite database. SQLite is an easy-to-configure, lightweight product which ships with Ruby on Rails by default. However, PostgreSQL is a more robust solution which provides more advanced features, scaling, and stability, which may make it more suitable for your Ruby on Rails project. [...]  

How to use MySQL With Your Ruby on Rails Application

Ruby on Rails uses SQLite as its database by default, but it also supports the use of MySQL. SQLite is an excellent alternative to a traditional database like MySQL, but it has some limitations, particularly with regards to concurrency and scaling to a high load, which may make MySQL a better choice for your project. [...]  

Install Ruby on Rails using rbenv on a 1&1 Linux Cloud Server

Learn how to install Ruby on Rails on a 1&1 Linux Cloud Server. Ruby on Rails is a framework for writing website applications with Ruby. Ruby on Rails is a server-side web application development platform which combines the Ruby programming language with HTML, CSS, and Javascript. It is a fast, powerful, popular way to design and deploy web applications. rbenv offers an easy way to install Ruby versions and gems, and is a simple way to manage your Ruby installation. [...]