1. Use the database management tool uniformly, liquibase is recommended, and the data model must be kept and use powerdesign.
2. Horizontal expansion of the project as a whole, considering some additional fields and logical changes in the later stage.
3. Data traceability, delete data Consider logical deletion and physical deletion of data.
4. The architecture must be refined in consideration of roles and departments, and later changes will be a headache.
5. Sort out the business logic and make it remarkable.