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gorgeous gorgeous
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5 years ago
How is minimum cardinality expressed in IE Crow's Foot E-R diagrams?
Textbook 
Database Processing: Fundamentals, Design, and Implementation

Database Processing: Fundamentals, Design, and Implementation


Edition: 15th
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wrote...
5 years ago
The Crow's Foot E-R diagram notation uses a circle to indicate a minimum cardinality of zero (or "optional") and a hash mark to indicate a minimum cardinality of one (or "mandatory"). Each symbol is placed on the relationship line just beyond the symbol indicating maximum cardinality.
gorgeous Author
wrote...
5 years ago
Appreciate the effort, thank you!
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