Thanks https://time.geekbang.org/column/article/109695
14 丨 What is transaction processing, how to use COMMIT and ROLLBACK to operate?
15 丨 Introduction to transaction isolation: What are the levels of isolation and what abnormal problems have they solved?
16 丨 Cursor: What should we do when we need to process data one by one?
17 丨 How to operate MySQL with Python?
18 丨 SQLAlchemy: How to use the Python ORM framework to operate MySQL?