How to uninstall mysql

MySQL is a widely used database management system used to manage the storage, retrieval and update of data. In some cases, you need to uninstall MySQL, either because you are installing a different version of MySQL or because you no longer need MySQL. If you are looking for how to uninstall MySQL, this article will provide you with clear steps.

1. Stop the MySQL service

Before uninstalling, you need to stop the running MySQL service. In a Windows environment, you can open "Task Manager", select the "Services" tab, find the "MySQL" service and stop it. In a Linux environment, you can use the following command to stop the MySQL service:

sudo systemctl stop mysql

2. Uninstall the MySQL package

In a Windows environment, you can stop it through the " Programs and Features" option to uninstall the MySQL package. In a Linux environment, you can use the following command to uninstall the MySQL software package:

sudo apt-get remove mysql-server

Note: The above command can only uninstall the MySQL server software package and will not uninstall the MySQL client software package. If you want to uninstall the MySQL client package, you can use the following command:

sudo apt-get remove mysql-client

3. Delete MySQL data

After uninstalling MySQL, you need to manually delete the MySQL data files folder to ensure that previous data will not affect subsequent installations. In a Windows environment, the MySQL default data folder is usually located in the "C:Program FilesMySQLMySQL Server 8.0data" directory. In the Linux environment, the default MySQL data folder is usually located in the "/var/lib/mysql" directory. You can delete the data folder using the following command:

sudo rm -rf /var/lib/mysql

Please note: Deleting the data folder will permanently delete all MySQL databases and tables, so be sure if you want to delete them.

4. Uninstall the MySQL service

In a Windows environment, the MySQL installer will automatically install the MySQL service for you. If you do not plan to install MySQL again, please use the following command to uninstall the MySQL service:

sc delete MySQL

In a Linux environment, if you have used the systemd manager to manage the MySQL service, you can use the following command to uninstall the MySQL service:

sudo systemctl disable mysql
sudo systemctl stop mysql
sudo apt-get remove --purge mysql-server
sudo apt-get autoremove
sudo apt-get autoclean

If you used the upstart manager to manage the MySQL service, you can use the following commands to uninstall the MySQL service:

sudo service mysql stop
sudo apt-get remove --purge mysql-server
sudo apt-get autoremove
sudo apt-get autoclean

These commands will uninstall MySQL and clear all MySQL related files and configuration. However, please note that please back up the database before uninstalling so that you can restore the database and tables to avoid data loss.

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