Multiple Choice
Which statement best describes a candidate key?
A) It is the primary key for an entity.
B) It uniquely identifies every instance of an entity.
C) One or more keys are joined together to form a composite key.
D) One or more keys may be used to form a primary key.
Correct Answer:
Verified
Correct Answer:
Verified
Q1: Consider the Registration relation shown in the
Q2: Which term describes an attribute or combination
Q3: Which term best defines a database system
Q4: Consider the Registration relation shown in the
Q5: Consider the Information Engineering diagram in the
Q7: Which area of database security involves maintaining
Q8: Consider the following table as well as
Q9: FROM Registration WHERE Consider the following relational
Q10: The creation of intermediate entities occurs during
Q11: You enterprise must decide whether to use