How to Install MySQL on a Raspberry Pi

MySQL is a popular open-source relational database management system, well-suited for web and server applications. Installing it on a Raspberry Pi can turn this compact device into a robust server for managing data. This guide provides a straightforward approach to setting up MySQL on a Raspberry Pi.

Update and upgrade your system

Before proceeding, ensure your Raspberry Pi is up to date:

sudo apt update
sudo apt upgrade

Install MySQL Server

To install MySQL, use the following command:

sudo apt install mysql-server

After installation, secure your MySQL installation:

sudo mysql_secure_installation

Follow the prompts to set a root password and configure security options.

Access MySQL as the root user

Initially, access MySQL with the root user:

sudo mysql -u root -p

Enter the root password when prompted.

Create a new database user

For security reasons, it’s recommended to create a new user:

CREATE USER 'username'@'localhost' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON *.* TO 'username'@'localhost' WITH GRANT OPTION;
FLUSH PRIVILEGES;

Replace username and password with your preferred credentials.

Create a new database

Create a database for your applications:

CREATE DATABASE exampledb;

Replace exampledb with your desired database name.

Access the database

To access and manage your database, log in with your new user:

mysql -u username -p

Enter the password when prompted.

Manage MySQL service

To control the MySQL service, use the following commands:

sudo systemctl start mysql    # To start MySQL service
sudo systemctl stop mysql     # To stop MySQL service
sudo systemctl enable mysql   # To enable MySQL on boot
sudo systemctl disable mysql  # To disable MySQL on boot

Conclusion

With MySQL installed on your Raspberry Pi, you now have a powerful tool for managing data. Whether for web applications, IoT projects, or learning SQL, your Raspberry Pi is now ready for database management tasks.