What is an er diagram how are entities and relationships
Problem
1. What is an ER diagram?
2. How are entities and relationships represented in an ER diagram?
3. How are attributes represented in an ER diagram?
4. What are cardinality constraints and how are they shown in ER diagrams?
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problem1 what is an er diagram2 how are entities and relationships represented in an er diagram3 how are attributes
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