Two files may be joined into a third file if
A. they have a row in common
B. they have a field in common
C. they have no records with the same value in the common field
D. both (b) and (c)
E. None of the above
Answer: Option B
A. they have a row in common
B. they have a field in common
C. they have no records with the same value in the common field
D. both (b) and (c)
E. None of the above
Answer: Option B
A. update files
B. print files on paper
C. data entry
D. All of the above
E. None of the above
Which of the following is not a logical data-base structure?
A. tree
B. relational
C. network
D. chain
E. All of the above
Which of the following is a database administrator's function?
A. database design
B. backing up the database
C. performance monitoring
D. user coordination
E. All of the above
Primitive operations common to all record management systems include
A. Print
B. Sort
C. Look-up
D. All of the above
E. None of the above
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