I assume the SQL Driver you're talking about is a part of WC. I have absolutely no experience using it, so I assume it also sets up the tables that it uploads the data to. Unless that function or the documentation tells you the structure of those tables, you'll probably need to look at them.
First thing I'd do would be to download PHPMyAdmin:
https://www.phpmyadmin.net/downloads/Your ISP probably has a version of it in your cPanel. I'd suggest you download it for local use as you develop summaries/charts/displays/etc. It runs in your browser, BTW. It's also free.
Second thing I'd suggest is one or two of the free video SQL courses online. SQL itself is quite simple, it's not a programming "language", but you'll have to write the data requests in very strict formats in order to use it efficiently.
You can use any programming language you want to manipulate the data. I think PHP is about the easiest to learn/use. It's already on your Mac and I can't imagine any ISP not having a new version available. If your going the online video way, you'll find many courses that combine PHP and SQL.
As with any project it is critical to know where you are going before you start the journey. It's especially important when there are very few limits as to where that journey might end. Of course, there are tens of thousands of PHP and other language scripts and apps that you may well be able to use. But if you have no experience with modifying those scripts, you will be stuck with what the author did, until he does something else... Or you find another script. With a hard coded app, you choices are even more limited.
That's why I suggest PHP, it was designed to work with HTML from the start. As a matter of fact the "h" stood for 'home' page!
and it also makes creating/reading/writing/SQL commands easy and then creating the displays of that data, including any mathematical messaging!