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Introduction to Database System

Introduction to Database System
In a relational schema, each tuple is divided into fields called

Queries
All of the listed here
Relations
Domains

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Introduction to Database System
A command that lets you change one or more fields in a record is

Insert
Look-up
None of these
Modify
All of these

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Introduction to Database System
Which of the following is not a relational database?

Reflex
4th Dimension
dBASE IV
FoxPro

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Introduction to Database System
In a one-to-many relationship, the entity that is on the many side of the relationship is called a(n) ________ entity.

child
instance
subtype
parent

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Introduction to Database System
A relation is in 5NF when multivalued dependencies are isolated in their own relation.

False
True

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Introduction to Database System
In the relational model, relationships between relations or tables are created by using:

determinants.
composite keys.
candidate keys.
foreign keys.

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