[Maria-discuss] How spy database alterations

Hi. Working with a web application (PHP, Nginx, MariaDB) that doesn't really work as expected, I'm looking for a way to monitor/spy database alterations done when some action is performed on the FrontEnd. It would be faster by far than to read the application's source code. So is there a non-invasive way to monitor/spy database alterations performed after a given time, or triggered manually ? Thanks ! P.S. : I know that I could add triggers on all database operation, but that would require adding a awful quantity of triggers and would not be easy to realize.