How to install PostgreSQL on Ubuntu

PostgreSQL commonly known as Postgres is an open source object-relational database system which has been around for more than 15 years. PostgreSQL is well reputed with a lot of awards to its name.It runs on all major operating systems, including Linux, UNIX (AIX, BSD, HP-UX, SGI IRIX, Mac OS X, Solaris, Tru64), and Windows. Learn how to install PostgreSQL client and PostgreSQL server in Ubuntu with this step by step tutorial.