associative entity

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associative entity

associative entity

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Ternary relationships<br />

Note: a relationship can have attributes of its own

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Ternary relationships Note: a relationship can have attributes of its own

Basic relationship with only maximum cardinalities showing Mandatory minimum cardinalities

Page 1 and 2: Data Processing AAOC C311 I Semeste
Page 3: Binary relationships
Page 7 and 8: A binary relationship with an attri
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