After listening to the most recent Spring DB 2, I felt like I was riding a time machine when I listened to this lecture! I was a little worried because I was challenging it as a wild type, but after listening to this lecture after following the Spring Complete Conquest Roadmap, I had almost no trouble understanding the content. They explained it so well, and since there were some overlapping contents, I thought I was reviewing everything and enjoyed it. In the next lecture, ORM JPA, the content such as persistence context and mapping was explained to some extent, so I was able to get a general idea of what it was about, and I am looking forward to the next lecture. Thank you again for the great lecture. I will listen to the next lecture well.