This time, I listened to the second part of the utilization, which is a really good lecture. It is the most efficient lecture I have ever listened to. It is a lecture that is about 7 hours long, but I think that it contains the experience of Yeonghan for several years. I feel like I bought thousands of hours at this price. Thank you very much for the great lecture. I also really appreciate the quick Q&A. I am also looking forward to spring data jpa. Have a good day^^