ER diagrams for Bank, College database..

3. Entity Sets customer and loan customer-id customer- customer- customer- loan- amount name street city number

5. Composite Attributes

7. Relationship Set borrower

11. Mapping Cardinalities One to one One to many Note: Some elements in A and B may not be mapped to any elements in the other set

12. Mapping Cardinalities Many to one Many to many Note: Some elements in A and B may not be mapped to any elements in the other set

15. E-R Diagram With Composite, Multivalued, and Derived Attributes

16. Relationship Sets with Attributes

26. E-R Diagram with a Ternary Relationship

37. Specialization Example

44. E-R Diagram With Aggregation

46. E-R Diagram for a Banking Enterprise

47. Summary of Symbols Used in E-R Notation

48. Summary of Symbols (Cont.)

49. Alternative E-R Notations