associative entity
associative entity associative entity
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31.12.2014
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Optional cardinalities with unary degree, one-to-one relationship
A binary relationship with an attribute Here, the date completed attribute pertains specifically to the employee’s completion of a course…it is an attribute of the relationship
- Page 1 and 2: Data Processing AAOC C311 I Semeste
- Page 3 and 4: Binary relationships
- Page 5: Basic relationship with only maximu
- Page 9 and 10: A unary relationship with an attrib
- Page 11 and 12: Professors and courses (fixed upon
- 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
Optional cardinalities with unary degree, one-to-one relationship
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