Multiple Choice
The "_____" characteristic of a primary key states that the selected primary key must not be composed of any attribute(s) that might be considered a violation.
A) unique values
B) nonintelligent
C) preferably single-attribute
D) security-compliant
Correct Answer:
Verified
Correct Answer:
Verified
Q54: The relationships depicted within the specialization hierarchy
Q55: Entity supertypes and subtypes are organized in
Q56: Specialization is the top-down process of identifying
Q57: Explain the "no change over time" characteristic
Q58: A design trap occurs when a relationship
Q60: In specialization hierarchies with multiple levels of
Q61: The extended entity relationship model (EERM) is
Q62: Disjoint subtypes are also known as _
Q63: A subtype contains attributes that are common
Q64: The _ depicts the arrangement of higher-level