Multiple Choice
A surrogate key should be considered when ________.
A) a relationship is M:N
B) a composite key is required
C) the key contains a lengthy text field
D) the key contains a number
E) an index needs to be created
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q2: In many-to-many relationships in a relational database
Q3: To represent an M:N relationship in a
Q3: To represent an IS-A relationship in a
Q4: The binary constraint MUST COVER indicates that
Q6: Which of the following is not a
Q7: In a relational database design,all relationships are
Q9: When representing a one-to-many relationship in a
Q53: Data types are consistent across all DBMS
Q54: Association tables sometimes connect more than two
Q80: An intersection table can have additional attributes