With Plesk you can manage databases using Webadmin without using any database management program in your system. To manage databases using Webadmin, follow the below steps.
Login to your Plesk panel.
Go to Website & Domains.
Under Website & Domains tab, click on Databases icon. The list of databases will appear.
Select the database for which you want to manage.
Then click on Webadmin icon. Now you can manage your selected database using Webadmin.