To delete a MySQL or MariaDB database from SWPanel, you will have to follow the following steps:
- Access the dashboard of the hosting service where the database is created.
You can use the top search engine of your SWPanel

- From the blue side menu, go to Service Management → DB management:

- Locate the Database you want to delete and position the cursor over the [...] menu of it. Then, click on Delete MariaDB DB:

- You must click on Delete and then confirm the action in the new window:
