An identifier of an entity instance is one or more attributes that name or identify entity instances.
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Q2: A data model is a plan for
Q3: The degree of a relationship is the
Q4: In today's E-R models,attributes of relationships are
Q5: The method of constructing data models used
Q6: An entity is something that users want
Q8: An entity instance of an entity class
Q9: Entities of a given type are grouped
Q10: A binary relationship is a relationship between
Q11: An identifier serves the same role for
Q12: Entities can be associated with one another
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