What new contributions to data modeling do UML-style E-R diagrams introduce?
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Q18: Persistent means that data should continue to
Q19: In UML-style E-R diagrams,a weak entity is
Q20: In UML notation,the relationship line in a
Q21: In UML notation,the relationship line in a
Q22: What is OOP persistence,and how is it
Q24: In UML notation,the relationship line in a
Q25: In UML,an attribute that is accessible only
Q26: How are entity classes drawn in UML-style
Q27: In UML,an attribute that is accessible only
Q28: In the UML-style entity class ORDERS shown
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