associative entity
associative entity associative entity
Examples of multiple relationships – entities can be related to one another in more than one way Employees and departments
Professors and courses (fixed upon constraint)
- Page 1 and 2: Data Processing AAOC C311 I Semeste
- Page 3 and 4: Binary relationships
- Page 5 and 6: Basic relationship with only maximu
- Page 7 and 8: A binary relationship with an attri
- Page 9: A unary relationship with an attrib
- Page 13 and 14: Strong and weak entities Strong ent
- Page 15 and 16: An associative entity (CERTIFICATE)
- Page 17 and 18: Ternary relationship as an associat
- Page 19 and 20: ER - Example © Prentice Hall, 2002
- Page 21: Next Lecture on …. Enhanced ER ER
Professors and courses (fixed upon constraint)