Course Solutions Uncategorized (Solved) : Course Two Properties Relationships Entities Erd Introduced Cardinality Refers Ratio Paren Q27939568 . . . .

(Solved) : Course Two Properties Relationships Entities Erd Introduced Cardinality Refers Ratio Paren Q27939568 . . . .

June 27, 2024June 27, 2024| adminadmin| 0 Comment| 8:18 pm
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In this course, two properties of relationships between entitiesin an ERD are introduced: Cardinality: refers to the ratio ofparent instances to child instances Modality: refers to whether ornot an instance of a child entity can exist without a relatedinstance in the parent entity. Discuss how we can determine thecardinality for a relationship including examples of different typeof cardinality (1:1, 1:N, and M:N)

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