Exercise: Database Systems

Questions for: Database Systems

After you _____ a record, many data management the environments require you to issue a command to save the changes you made.
A:
Delete
B:
Update
C:
Sort key
D:
Index
Answer: B
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Each of data files has a _____ that describe the way the data is stored in the file.
A:
File structure
B:
Records
C:
Fields
D:
Database
Answer: A
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Primitive operations common to all record management systems include
A:
Print
B:
Sort
C:
Look-up
D:
All of the above
Answer: C
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Which of the following is a database administrator's function?
A:
database design
B:
backing up the database
C:
performance monitoring
D:
user coordination
Answer: E
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Which of the following is not a logical data-base structure?
A:
tree
B:
relational
C:
network
D:
chain
Answer: D
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