A PostgreSQL
Command line
, in general, is a software program. We execute a command line on a command line interface (CLI) to interact directly with data on a database. Although a
Graphical User Interface (GUI)
provides a much better user experience, PostgreSQL CLI acts vital when managing applications or operating systems with greater control, reliability, and conventionality.
PostgreSQL is an RDBMS (Relational Database Management System) that allows effortless and secured data collection.
Today, PostgreSQL is used as the primary data storage repository (as a data warehouse) for many websites, mobile and analytics applications. And, you would have noticed (when you were installing the PostgreSQL database server) some tools that offer data professionals with a high understanding of SQL a seamless way to manage databases in PostgreSQL using command lines and Postgres terminal.
Table of Contents
What is PostgreSQL?
PostgreSQL
is an open-source relational database management system (
RDBMS)
. PostgreSQL, with its top-of-the-class performance optimization and advanced datatypes features, has made a name for itself in the data community. Thanks to its feature-rich suite experience, robust and reliable performance, PostgreSQL has become the preferred choice, ranking as the 4th most popular database management system worldwide.
PostgreSQL operates flawlessly with all major operating systems like Linux, Windows, and Mac OS. The fact that PostgreSQL offers multi-application interoperability, the platform provides its users with an advantage to manage their databases with a high degree of control and flexibility.
Some key features of PostgreSQL are as follows:
It’s known for its diverse user base:
Apple, Cisco, Etsy, Facebook, Instagram, Red Hat, Skype, Spotify, and Yahoo all have one thing in common, all leverage PostgreSQL for their everyday database needs.
It’s highly reliable and compatible with multiple data types
: PostgreSQL’s write-ahead logging makes it a highly fault-tolerant database. Moreover, high compatibility with multiple data types makes its use cases synonymous with today’s data professionals’ pain points, making it the de-facto solution.
postgres=# \l
List of databases
Name | Owner | Encoding | Collate | Ctype |
-----------+----------+----------+---------------------+----------------------+
books_db | postgres | UTF8 | English_Ireland.1252 | English_Ireland.1252 |
Additonally, using
\l
+ prompt will display additional information such as the size and the tablespace in the database.
Used as a graphical tool in PostgreSQL to manage databases, pgAdmin is a web-based front-end to PostgreSQL database server. To access the database using pgAdmin, first, you will need to install and configure the latest version of your browser and create a new pgAdmin user account. An email and a password are required to authenticate access.
After the authentication process is complete, you can access the phAdmin 4 interface using the command line given below:
http://localhost/pgadmin4
http://ip-adress/pgadmin4
Now, use the email and password created previously to authenticate the user. Now, the user interface will load and now you would need to navigate as shown in the image below. (Servers>Create>Server)
Discover how the
PostgreSQL TRIM
function helps clean up your strings by removing unwanted spaces.
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Yash is a Content Marketing professional with over three years of experience in data-driven marketing campaigns. He has expertise in strategic thinking, integrated marketing, and customer acquisition. Through comprehensive marketing communications and innovative digital strategies, he has driven growth for startups and established brands.
