JTB
2025. 7. 25. 22:51
ERD (Entity Relationship Diagram)
An ERD serves as the fundamental blueprint when building a database,
defining the relationships between relations (tables).
- ERDs are created based on system requirements, and the database is built from this design.
- Even after the database is built, ERDs can serve as a reference for debugging or redesigning business processes.
However, while ERDs are useful for representing data in a relational structure,
they have limitations in fully representing unstructured data.
Example of an ERD
