Tugas – Essay : database Design
1. A file or table is _____________________________.
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2. A database is a collection of _________________files.
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3. Examples of conventional file organizations include: (name 2).
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4. A primary key is a field whose values identify __________________________.
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5. A secondary key's value may identify either ________________ or _________________.
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6. A fixed-length record structure means that each record instance has
____________________________________.
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7. A variable-length record structure means ______________________________.
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8. A(n) _______________________ is the relational database equivalent of a file.
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9. To determine ________________ requirements, a systems analyst models the system's
_________ requirements as entities and relationships.
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10. ____________________________ technology was created so an organization could
maintain and use its data as an integrated whole instead of separate data files.
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11. __________________________ databases and _______________________ databases are
synonyms that refer to databases that are developed to support day-to-day operations
and business transaction processing for major information systems.
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12. __________________________________ store data extracted from the operational
databases and conventional files.
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13. The primary key for a record must never be allowed to have a(n) _________________
value.
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14. _______________________________ distribution of the data means that each table or
entire rows in a table would be assigned to different database servers and locations.
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15. _______________________________ distribution of the data results in efficient access and
security of data because each location has only those tables and rows required for that
location.
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