Since this is your first time using apt in this session, refresh your local package index. Ubuntu’s default repositories contain Postgres packages, so you can install these using the apt packaging system. After completing this prerequisite tutorial, your server should have a non- root user with sudo permissions and a basic firewall. To follow along with this tutorial, you will need one Ubuntu 18.04 server that has been configured by following our Initial Server Setup for Ubuntu 18.04 guide. This guide demonstrates how to install Postgres on an Ubuntu 18.04 VPS instance and also provides instructions for basic database administration. It is a popular choice for many small and large projects and has the advantage of being standards-compliant and having many advanced features like reliable transactions and concurrency without read locks. PostgreSQL, or Postgres, is a relational database management system that provides an implementation of the SQL querying language. They provide a structured way to store, organize, and access information. Relational database management systems are a key component of many web sites and applications.

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