Pull one entry from database and post daily on WP website

I am updating an old site and converting it to WP
I am completely done (over 100 pages) and now find that I can’t bring in the php based database setup from the od site, so I need to replicate it somehow.
The current set up is a database which I enter the data manually and the php page pulls an entry every day and posts it on a page in a table cell.
I need an alternative that will work in WP.
Pull a set of data every day and post it on a page – preferably in a table cell like the current set up.
Is there a plug or work around that can accomplish this?
I’ve been working on this site for months and am all set to go except for this one thing

thanks