Thursday evening, June 8, 2023:
This afternoon and evening, I was studying content related to the relational paradigm. I found a very good teaching video on station B. If you can insist on watching it, you will have a very good harvest:
[2 hours to master 10 major database paradigm question types: closure | candidate key | minimum function dependency set | .com/video/BV1JY4y1X7xE/?share_source=copy_web&vd_source=a588b30b1c8de1d716699b8ae558538f
I find minimal functional dependencies, relational paradigms, etc. useful to reduce data redundancy and save costs. From this point of view, the course of database is very worthy of systematic and in-depth study.