I had been struggling with SQL for a while and was wondering what to do. But I was too busy to open a book and study from AtoZ, so I was very grateful when the instructor opened a class. If I didn't know SQL at all, it would be a different story, but this class where I can immediately solve example problems when I've forgotten something I used to know!!! I was able to remember the queries that were somewhere in my memory and immediately put them into practice(?)!