This repo documents my learning process for CMU15/445: Database Systems (spring 2023).
There are three parts：
- Lecture note in Chinese: for lec2 - 8，I only record something that I think difficult to understand， for lec9 - 24, I record everything in detail.
- Project tips: I finish project0-4 without leaderboard optimization，I write down some of the problems and difficulties I encountered during the implementation process.
- Testcases: The testcases I add base on the results of the online test.