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Physical Database Design

Physical Database Design
A pointer is a detailed coding scheme recognized by system software for representing organizational data.

True
False

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Physical Database Design
The three newest database architectures in use today are relational, multidimensional and hierarchical.

True
False

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Physical Database Design
Denormalization and clustering can work well to minimize data access time for small records.

False
True

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Physical Database Design
Which of the following improves a query's processing time?

Query one query within another.
Combine a table with itself.
Write complex queries.
Use compatible data types.

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Physical Database Design
What is the best data type definition for Oracle when a field is alphanumeric and has a fixed length?

VARCHAR2
NUMBER
CHAR
LONG

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Physical Database Design
Some advantages of partitioning include: efficiency, security, and load balancing.

True
False

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