postgresql software package provides object-relational SQL database (supported version), you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install postgresql
postgresql is installed in your system.
Make ensure the postgresql package were installed using the commands given below,
$ sudo dpkg-query -l | grep postgresql *
You will get with postgresql package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Databases |
| Package | postgresql |
| Version | 9.3+154 |
| Description | object-relational SQL database (supported version) |
| Sub Section | Database |