This guide is to help you get MariaDB 10.4 running on CentOS 7 / Install MariaDB 10.4 on Ubuntu 18.04 server?. As of this writing, the latest stable release of MariaDB is 10.4.  The default version of MariaDB installed on CentOS 7 is 5.5 and  MariaDB 10.1 for Ubuntu 18.04. These versions are available on OS upstream repositories.

For Debian 9 / Debian use How to Install MariaDB 10.4 on Debian 9 / Debian 8

For Ubuntu 16.04 use How to install MariaDB 10.4 on Ubuntu 16.04 LTS (Xenial)

Before you can install MariaDB 10.4, you may need to uninstall the current version of MariaDB server. You can ignore this if upgrading.  On Ubuntu, run:

sudo apt-get remove mariadb-server

For CentOS 7, run:

sudo yum remove mariadb-server

Install MariaDB 10.4 on Ubuntu 18.04

To install MariaDB 10.4 on Ubuntu 18.04, you need to add MariaDB repository on to the system.

Step 1: Install software-properties-common if missing:

sudo apt-get install software-properties-common

Step 2: Import MariaDB gpg key:

Run the command below to add Repository Key to the system

sudo apt-key adv --recv-keys --keyserver hkp://keyserver.ubuntu.com:80 0xF1656F24C74CD1D8

Step 3: Add the apt repository

Once the PGP key is imported, proceed to add repository URL to your Ubuntu 18.04 server:

sudo add-apt-repository "deb [arch=amd64,arm64,ppc64el] http://mariadb.mirror.liquidtelecom.com/repo/10.4/ubuntu $(lsb_release -cs) main"

Step 4: Install MariaDB

The last step is the installation of MariaDB Server:

sudo apt update
sudo apt -y install mariadb-server mariadb-client

You will be prompted to provide MariaDB root password. Enter a password to set.

Confirm password:

Press <Ok> to confirm the new password and install MariaDB. Make sure you note provided password.

If you were not prompted to set root password, run:

$ sudo mysql_secure_installation

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, we'll need the current
password for the root user.  If you've just installed MariaDB, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none): 
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.

Set root password? [Y/n] y
New password: 
Re-enter new password: 
Password updated successfully!
Reloading privilege tables..
 ... Success!


By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them.  This is intended only for testing, and to make the installation
go a bit smoother.  You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] y
 ... Success!

Normally, root should only be allowed to connect from 'localhost'.  This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] y
 ... Success!

By default, MariaDB comes with a database named 'test' that anyone can
access.  This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] y
 - Dropping test database...
 ... Success!
 - Removing privileges on test database...
 ... Success!

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] y
 ... Success!

Cleaning up...

All done!  If you've completed all of the above steps, your MariaDB
installation should now be secure.

Thanks for using MariaDB!

Confirm MariaDB version:

$ mysql -u root -p
Enter password: 
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 49
Server version: 10.4.6-MariaDB-1:10.4.6+maria~bionic-log mariadb.org binary distribution

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]>

Check version using the command:

MariaDB [(none)]> SELECT VERSION();
+------------------------------------------+
| version()                                |
+------------------------------------------+
| 10.4.6-MariaDB-1:10.4.6+maria~bionic-log |
+------------------------------------------+
1 row in set (0.000 sec)

Step 5: Install Desktop Database Management Tool

If working with MySQL command line is not your thing, then consider installing a Database Tool to help you. Check out our guide below:

Install and Configure DBeaver on Ubuntu 18.04 / Ubuntu 16.04 / Debian 9

Install and Configure DBeaver on Fedora 30/29 & CentOS 7/8

For phpMyAdmin, use our guide below:

How to Install Latest phpMyAdmin on Ubuntu/Debian , CentOS, Fedora

Install MariaDB 10.4 on CentOS 7

Add MariaDB YUM repository to CentOS 7 server:

cat <<EOF | sudo tee /etc/yum.repos.d/MariaDB.repo
[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/10.4/centos7-amd64
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1
EOF

To install other versions of MariaDB like 10.3 or 10.2 replace 10.4 with the other version on baseurl.

Clean yum cache index:

sudo yum makecache fast

Install MariaDB 10.4 on CentOS 7:

sudo yum -y install MariaDB-server MariaDB-client

More details about the installed package can be viewed from:

$ rpm -qi MariaDB-server
Name        : MariaDB-server
Version     : 10.4.6
Release     : 1.el7.centos
Architecture: x86_64
Install Date: Sun 07 Jul 2019 10:31:57 AM CESTf
Group       : Applications/Databases
Size        : 130648787
License     : GPLv2
Signature   : DSA/SHA1, Tue 18 Jun 2019 08:13:58 PM CEST, Key ID cbcb082a1bb943db
Source RPM  : MariaDB-server-10.4.6-1.el7.centos.src.rpm
Build Date  : Tue 18 Jun 2019 01:57:58 AM CEST
Build Host  : centos73-amd64
Relocations : (not relocatable)
Vendor      : MariaDB Foundation
URL         : http://mariadb.org
Summary     : MariaDB: a very fast and robust SQL database server
Description :


It is GPL v2 licensed, which means you can use the it free of charge under the
conditions of the GNU General Public License Version 2 (http://www.gnu.org/licenses/).

MariaDB documentation can be found at https://mariadb.com/kb
MariaDB bug reports should be submitted through https://jira.mariadb

Start and enable MariaDB service:

sudo systemctl enable --now mariadb

Secure MariaDB by running mysql_secure_installation.

# mysql_secure_installation 

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, we'll need the current
password for the root user.  If you've just installed MariaDB, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none): 
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.

Set root password? [Y/n] y
New password: 
Re-enter new password: 
Password updated successfully!
Reloading privilege tables..
 ... Success!


By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them.  This is intended only for testing, and to make the installation
go a bit smoother.  You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] y
 ... Success!

Normally, root should only be allowed to connect from 'localhost'.  This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] y
 ... Success!

By default, MariaDB comes with a database named 'test' that anyone can
access.  This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] y
 - Dropping test database...
 ... Success!
 - Removing privileges on test database...
 ... Success!

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] y
 ... Success!

Cleaning up...

All done!  If you've completed all of the above steps, your MariaDB
installation should now be secure.

Thanks for using MariaDB!

Log in and check MariaDB version:

# mysql -u root -p
Enter password: 
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 16
Server version: 10.4.6-MariaDB MariaDB Server

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> select version();
+----------------+
| version()      |
+----------------+
| 10.4.6-MariaDB |
+----------------+
1 row in set (0.000 sec)

You can also check version using:

# mysql -V
mysql  Ver 15.1 Distrib 10.4.6-MariaDB, for Linux (x86_64) using readline 5.1

You should now be running MariaDB 10.4 on your Ubuntu 18.04 / CentOS 7. If you want to go MySQL way. check our previous guide:

How to Install MySQL 8.0 on Ubuntu 18.04 / 16.04

Installing MySQL Server on CentOS 7 / CentOS 6.

Best MySQL Study books:

  • Getting Started With SQL – A Hands-On Approach for Beginners – a simple, to-the-point introductory read that’ll touch on the practical implications of SQL. Here, a reader gets introduced concisely to all the basics of the language;
  • Head First SQL – Your Brain on SQL – A Learner’s Guide;
  • SQL Cookbook: Query Solutions and Database Techniques for Database Developers – a book is full of hacks and tips that can be applied in day-to-day database management;
  • Teach Yourself MS SQL Server – a fairly old book, yet, it covers all the aspects of SQL Server on a high level;
  • Effective SQL – an easy-to-read guide book that explores SQL features. Keep in mind that you might need some SQL knowledge to apply the ideas that have been laid out.