I experienced JPA first, and this time, I was able to learn specifically how to communicate with the database through the core principles of data access, which was great. You explained it really thoroughly, and I found it especially interesting and fun that the explanation was connected to OCP and DI. Thank you!

Brad Ryu

Brad Ryu, in the end, all the basics are connected^^ Thank you.

You can understand and perfect the basics of DB data access technology required for backend development. You can understand the principles and structure of Spring DB access technology and grow into a more in-depth backend developer.