The entity-relationship data model is perhaps the most promising modeling technique.
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Q1: The tree database structure corresponds to the
Q2: The logical structure of a database is
Q4: The terms field,data item,attribute,and element are synonyms.
Q5: Using the direct-access method,congestion results when two
Q6: It is useful to sort the records
Q7: Related groups of fields that repeat themselves
Q8: Occurrences are also known as instances.
Q9: A field would be composed of "customer
Q10: Nominalization is the process of applying rules
Q11: Using the direct-access method,the only thing needed
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