PostgreSQL is one of the most advanced open source Relational Database Management Systems (RDBMS). It is ANSI SQL:2008 standards compliant and has gained more buzz lately due to its addition of JSON and JSONB native data types, causing it to be looked at as a viable solution to problems NoSQL databases, such as MongoDB, are traditionally used to solve. Follow this guide to install PostgreSql on CentOS 7. * A Vultr CentOS 7 instance. * A [sudo user](https://docs.vultr.com/how-to-use-sudo-on-a-vul......