The ER model refers to a specific table row as an entity occurrence.
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Q8: The ER diagram represents the conceptual database
Q9: In an ER diagram,primary keys are usually
Q10: The Crow's Foot model is less implementation-oriented
Q11: In both the Chen and Crow's Foot
Q12: Ideally,a primary key is composed of several
Q14: Attributes cannot share a domain.
Q15: Attributes have a domain that specifies the
Q16: An ERM is dependent on the database
Q17: The DBMS can easily handle multivalued attributes.
Q18: All attributes are either simple or composite.
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