Which of the following is NOT a reason to create an instance of a relational schema with sample data?
A) Sample data can be used to improve user communications.
B) Sample data can be used for prototype generation.
C) Sample data can reverse database implementation errors.
D) Sample data provide a convenient way to check the accuracy of your design.
Correct Answer:
Verified
Q2: A domain definition consists of all of
Q3: In the figure below, Customer_ID in the
Q4: An attribute (or attributes) that uniquely identifies
Q5: An attribute in a relation of a
Q6: A two-dimensional table of data sometimes is
Q8: _ is a component of the relational
Q9: A primary key that consists of more
Q10: A primary key whose value is unique
Q11: The normal form which removes any remaining
Q12: The entity integrity rule states that:
A) no
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