How to create a database!?

I am new to html and Komodo IDE and need help creating a database. I need to create one so that I can have members for my teams robotics website. I get here but I don’t know what file Im supposed to use and where to go from there. HELP please!

You’ll have to create it externally, Komodo, the database explorer is just that - an explorer, it is not a full fledged database management tool.