Exercise: Database Systems

Questions for: Database Systems

The highest level in the hierarchy of data organization is called
A:
data bank
B:
database
C:
data file
D:
data record
Answer: B
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In SQL, GRANT command is used to
A:
allow user to access databases
B:
allow user to create databases
C:
grant system privileges, roles, and object privileges to uses and roles
D:
choose auditing for specific SQL commands
Answer: C
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Which of the following is true of a network structure?
A:
It is a physical representation of the data
B:
It allows a many-to-many relationship
C:
It is conceptually simple
D:
It will be the dominant data base of the future
Answer: B
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A form defines
A:
where data is placed on the screen
B:
the width of each field
C:
both (a) and (b)
D:
Either (a) or (b)
Answer: C
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A file produced by a spreadsheet
A:
is generally stored on disk in an ASCII text format
B:
can be used as it by the DBMS
C:
can be used for graphic
D:
All of the above
Answer: A
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