The conceptual model is
A. | Dependent on hardware |
B. | Dependent on software. |
C. | Dependent on both hardware and software |
D. | Independent of both hardware and software |
Option: D Explanation : Click on Discuss to view users comments. |
What is a relationship called when it is maintained between two entities?
A. | Unary |
B. | Binary |
C. | Ternary |
D. | Quaternary |
Option: B Explanation : Click on Discuss to view users comments. |
Which of the following operation is used if we are interested in only certain columns of a table?
A. | PROJECTION |
B. | SELECTION |
C. | UNION |
D. | JOIN |
Option: A Explanation : Click on Discuss to view users comments. |