Hello, I organise classes and I am building the base to manage them. I created several tables: students instructors Course catalogue locations all those tables are joint in another one called “groups” that is where I create the class that is going to...

Hi, I am doing a base dedicated to the inventory of stuff that I use for doing courses. If, for instance, I send to another location a video projector I want the number of available projectors to decrease. And when the video projector returns the qua...