An attribute of an entity that must have a value for each entity instance is a(n) :
A) optional attribute.
B) composite attribute.
C) required attribute.
D) fuzzy attribute.
Correct Answer:
Verified
Q2: A _ defines or constrains some aspect
Q3: A property or characteristic of an entity
Q4: A good data definition will describe all
Q8: An attribute that must have a value
Q9: An entity type name should be all
Q11: Customers, cars, and parts are examples of:
A)
Q13: A(n) _ is the relationship between a
Q14: Which of the following is an entity
Q18: The most common types of entities are:
A)
Q19: Data modeling may be the most important
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