When designing a database,first identify the entities,then determine the attributes,and finally create the relationships.
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Q28: When transforming a data model into a
Q29: In an E-R model,the three types of
Q30: A binary relationship is a relationship based
Q31: ID-dependent entities are associated by a nonidentifying
Q32: Relationships are classified by their cardinality.
Q34: In an E-R model,the three types of
Q35: E-R models use an identifying relationship to
Q36: An entity that represents something that can
Q37: A relationship's maximum cardinality indicates the maximum
Q38: The degree of a relationship is expressed
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