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Object Oriented Database

Object Oriented Database
Before specifying a key for a class, you must specify its extent.

False
True

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Object Oriented Database
A collection of literals or object types is called a bag.

True
False

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Object Oriented Database
You may specify an object identifier with only one unique tag name.

True
False

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Object Oriented Database
Literals do not have identifiers, and, therefore, cannot be individually referenced like objects.

True
False

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Object Oriented Database
Using ODL, you can define which of the following?

All of these
Attribute
Operation
Structure

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Object Oriented Database
Using OQL, you may do which of the following?

Return a specific subset of elements using a given criteria.
All of these
Return an entire collection of elements including duplicates.
Return a collection of elements without duplicates.

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