Can I delete all sqlite databases by a button in storage device?

I have set two buttons in my notes app , one is for creating Backups and the other one is for importing the backups which I created previously .

All my backups go to this file by the database name in storage device (note.db) enter image description here

So I would like when the user import the wanting backup , so there will be a button as well which he/she be able to delete all other unwanted backups inside the storage device.

Thank you very much for helping :)