Multiple Choice
What is a foreign key?
A) A field (or group of fields) that uniquely identifies a given entity in a table.
B) A primary key of one table that appears as an attribute in another table and acts to provide a logical relationship between the two tables.
C) Characteristics or properties of an entity.
D) A field (or group of fields) that uniquely identifies a given attribute in a table.
Correct Answer:
Verified
Correct Answer:
Verified
Q4: Which of the following is not an
Q5: What are characteristics or properties of an
Q6: What type of integrity constraint does not
Q7: Describe the role and purpose of a
Q8: A _ key is a field that
Q10: A(n)_ key in the relational database model
Q11: Which of the following is incorrect in
Q12: The _ view of information deals with
Q14: Why do relational databases use primary keys
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