Before you can import a database, you'll need to create a new database for there to be an empty database that you can import to. After making a new database you can then:
- Login to cPanel.
- Locate and click on the "phpMyAdmin" icon under the "Databases" category.

- After phpMyAdmin loads, click on the "Import" tab.
- Click on the "Choose File" button and select your .SQL file.
- Click on the "Go" button (toward the bottom of the page) and your MySQL database will import.
