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Database Systems Introduction to Databases and Data Warehouses
Quiz 2: Database Requirements and ER Modeling
A Unique Attribute Is an Attribute Whose Value Is Different
Question 54
True False
A unique attribute is an attribute whose value is different for each entity instance.
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Within an ER diagram,each entity must be related to at least one other entity via a relationship.
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Minimum cardinality can be many.
Q 57
Maximum cardinality can be optional.
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