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Install PostgreSQL on Ubuntu 20.04 - Step by step guide ?

This article covers how to install PostgreSQL on your Ubuntu 20.04 LTS machine. In fact, PostgreSQL, or Postgres, is a relational database management system that provides an implementation of the SQL querying language. It's standards-compliant and has many advanced features like reliable transactions and concurrency without read locks.


Service commands for PostgreSQL

The PostgreSQL database server runs as a service under the name "postgresql". You can manage the service by running the commands below.

1. Stop PostgreSQL server:

$ sudo systemctl stop postgresql

2. Start PostgreSQL server:

$ sudo systemctl start postgresql

3. Restart PostgreSQL(e.g. after changing configuration settings) server:

$ sudo systemctl restart postgresql

4. Reload PostgreSQL server:

$ sudo systemctl reload postgresql

5. Check PostgreSQL status:

$ sudo systemctl status postgresql

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Install PostgreSQL 13 on Rocky Linux - Best Method ?

This article covers PostgreSQL 13 installation on Rocky Linux 8.4. Basically, PostgreSQL is the world's most advanced open source database system. And with the release of PostgreSQL 13 there are significant improvements to the indexing and lookup system that benefit large databases, and faster response times for queries that use aggregates or partitions.


How to Enable and Start PostgreSQL Service ?

To enable and start the PostgreSQL database service so that it can start automatically with system boot:

$ sudo systemctl start postgresql-13
$ sudo systemctl enable postgresql-13

To confirm everything is working fine, check the status of PostgreSQL service:

$ sudo systemctl status postgresql-13

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Install PostgreSQL in CentOS 8 - Step by Step Process ?

This article will cover how to install and remove the PostgreSQL server and create a database in PostgreSQL on CentOS 8. Also you will learn how to add tables in the database by using the SQL query.

PostgreSQL is available from CentOS 8's default AppStream software repository, and there are multiple versions which you can install. 

You can choose between these versions by enabling the appropriate collection of packages and dependencies that align with the version you want to install, with each collection referred to as a module stream.


To List out the available streams for the postgresql module using the dnf command:

$ dnf module list postgresql

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Steps to install PostgreSQL on Linux Mint 20 ?

This article will guide you on the steps to #install #PostgreSQL on your #Linux #Mint 20 system and hence you can use it for efficiently managing your relational #databases. PostgreSQL is an advanced version of #SQL which provides support to different functions of SQL like foreign keys, #subqueries, #triggers, and different user-defined types and functions. To install PostgreSQL Linux Mint: 1. Add the #PGDG APT source file. 2. Add the PostgreSQL Package Repository Key. 3. Update, Upgrade, and Install PostgreSQL. 4. The postgres user. 5. The postgres database. 6. The #psql #Command Line Utility. 7. Create super user account. 8. Login using our newly created account.

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