I install wordpress from wamp. My task is to create participants table which contain all participants in an event. I already create the event page in the website and add registration form to this page. Now, I want to store form data in a database. how to create this database and link it to the website?

Note: first when I install wamp I create test_db database. Is that database will contains all the tables in my website? if yes, how can I use the tables in some of the website pages?

thanks.