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Introduction to Database System

Introduction to Database System
A relation has cells that hold multi-value entries.

True
False

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Introduction to Database System
What name is given to the collection of facts, items of information or data which are related in some way?

Information provider
Information tree
Directory information
Database

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Introduction to Database System
One data dictionary software package is called

any of the above
None of these
ACCESS
TOTAL
DB/DC dictionary

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Introduction to Database System
In SQL, which command is used to make permanent changes made by statements issue since the beginning of a transaction?

PACK
SAVE
COMMIT
ZIP

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Introduction to Database System
All instances of an entity class have the same attributes.

True
False

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Introduction to Database System
Which type of entity represents an actual occurrence of an associated generalized entity?

Supertype entity
Archetype entity
Subtype entity
Instance entity

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