Database: a container(a file or set of files) to store organized data
ER Model (Entity Relationship):
- Entity: person, place thing or event (distinguishable, unique, distinct)
- Attribute: a characteristic of an entity
- Relationship: describe association among entities (1-1, 1-n, n-n)
ER Diagram Notation:
Document Information
- Author: Zeka Lee
- Link: https://zhekaili.github.io/0009/01/01/Basis/
- Copyright: 自由转载-非商用-非衍生-保持署名（创意共享3.0许可证）