https://soatok.blog/2023/03/01/database-cryptography-fur-the-rest-of-us/
If you need a database knowledge refresher and an introduction to cryptography I found this article very good.
In my former career if I stumbled across a link like this I would immediately share it with the community of support workers. The subject of databases is complex. Add to the mix cryptography and it can become even more complex.
Other than the fury distraction, I found the information concise and informative. The information starts with the basics and moves to the advance topics and a fairly good pace.