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Questions and Answers
What is the main purpose of an entity in a database design?
What is the difference between an entity type and an entity instance?
What is the key difference between a strong entity and a weak entity?
What is the purpose of an identifying relationship in a database design?
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What is the main purpose of defining relationships in a database design?
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What is the purpose of modeling relationship types as lines between entity types?
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When does a relationship turn into an associative entity?
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What does the degree of a relationship represent?
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If the minimum cardinality of a relationship is zero, what does it indicate?
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Which of the following statements about attributes is true?
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