What are the available options we have to migrate a Web Access database from sharepoint 2010 to sharepoint online

I am working on an existing sharepoint on-premises 2010, and our aim is to migrate this on-premises 2010 to sharepoint online. now i checked the sites and they contain regular document libraries and lists, which should be smoothly get migrated using any third party tool or using the sharepoint online migration tool.

but i found a sub-site which contain something similar to an Access database, as follow:-

  1. I found this document library:- enter image description here

  2. When i click on it, i thought i will get list of documents, but i got those items and a database, as follow:-

enter image description here

  1. Also when i access the home page of the site i got this online database, as follow:-

enter image description here

Now i have not worked on sharepoint 2010, so i am not sure what does the above represent? is it an access database published to a sharepoint 2010 site? also most importantly, can we migrate this database to sharepoint online? if we can then can anyone adivce on the approaches?