Copy file into an online folder

Good day, I would like to copy and paste the file into my online database. Can I do it with the copy file activitie?
If yes how it would look like?

Can you please specify what online database you are talking about?

It is a company database. It has a similar structure like dropbox. But it has not a desktop version.

Is it accessible with Windows Explorer?
Like for instance, you can configure Sharepoint to do so and then you can treat Sharepoint folders as a classic local folder.