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Physical Database Design

Physical Database Design
Selecting a data type involves which of the following?

All of these
Improve data integrity
Maximize storage space
Represent most values

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Physical Database Design
An extent is a contiguous section of disk storage space.

True
False

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Physical Database Design
Which of the following is not a factor to consider when switching from small to large block size?

Random row access speed
The length of all of the fields in a table row
Block contention
The number of columns

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

True
False

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

VARCHAR2
NUMBER
CHAR
LONG

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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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