Multiple Choice
The extended entity relationship model (EERM) is sometimes referred to as the _____.
A) enclosed entity relationship model
B) enhanced entity relationship model
C) entity clustering relationship model
D) extended entity relationship diagram
Correct Answer:
Verified
Correct Answer:
Verified
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
Q59: The "_" characteristic of a primary key
Q60: In specialization hierarchies with multiple levels of
Q62: Disjoint subtypes are also known as _
Q63: A subtype contains attributes that are common
Q64: The _ depicts the arrangement of higher-level
Q65: _ completeness means that every supertype occurrence
Q66: At the implementation level, the supertype and