Which of the following can be defined as a column (or collection of columns) A such that all other columns are functionally dependent on A and no subcollection of the columns in A has this property?
A. functional key
B. composite key
C. primary key
D. declared key
Answer: C
You might also like to view...
Different social media has different capacities, and effective messages take advantage of those differences
Indicate whether the statement is true or false.
The point at which the amount of goods buyers want to buy exactly equals the amount of goods sellers want to sell, and at which the highest price buyers are willing to pay exactly equals the lowest price sellers are willing to take
Small sample sizes for an industrial report rarely cause a comparability problem in using standards
Indicate whether the statement is true or false
What is (are) the term(s) used to describe the party who borrows money as evidenced by a note payable?
A. Maker B. Issuer C. Issuer and maker D. Payee