The users who use easy-to-use menu are called
A. | Sophisticated end users |
B. | Naïve users. |
C. | Stand-alone users. |
D. | Casual end user |
Option: B Explanation : Click on Discuss to view users comments. |
Which database level is closest to the users?
A. | External |
B. | Internal |
C. | Physical |
D. | Conceptual |
Option: A Explanation : Click on Discuss to view users comments. |
Which are the two ways in which entities can participate in a relationship?
A. | Passive and active |
B. | Total and partial |
C. | Simple and Complex |
D. | All of the above |
Option: B Explanation : Click on Discuss to view users comments. |
The result of the UNION operation between R1 and R2 is a relation that includes
A. | All the tuples of R1 |
B. | All the tuples of R2 |
C. | All the tuples of R1 and R2 |
D. | All the tuples of R1 and R2 which have common columns |
Option: C Explanation : Click on Discuss to view users comments. shekhar said: (6:26pm on Thursday 15th August 2013)
option D is correct because UNION result depend on condition that both relation should have comman field or common column to generate result.
shekhar said: (6:26pm on Thursday 15th August 2013)
option D is correct because UNION result depend on condition that both relation should have comman field or common column to generate result.
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