Which of the following is NOT a type of early database models?
A) digital
B) flat
C) hierarchical
D) network
Correct Answer:
Verified
Q18: The _ is the carrier of messages
Q19: A good database management system should be
Q20: When data is grouped in records that
Q21: _ improves the performance of data operations
Q22: When we find an employee by the
Q24: The relational model presents a(n) _ view
Q25: _ software functions as a layer that
Q26: A relational row represents an entity, similar
Q27: The _ is an attribute in one
Q28: A relational database management system protects data
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