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Introduction to Database System

Introduction to Database System
In SQL, which command is used to add new rows to a table?

APPEND
INSERT
ADD ROW
ALTER TABLE

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Introduction to Database System
A recursive relationship is a relationship between an entity and ________ .

itself
an archetype entity
an instance entity
a subtype entity

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Introduction to Database System
When you have finished entering information into a form

the contents of the form are written to the data file
the contents of the form can be printed
All of the listed here
the template is written to the data file

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Introduction to Database System
Keys made up of two or more attributes are called composite keys.

False
True

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

Relations
All of the listed here
Domains
Queries

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Introduction to Database System
A scheme describes

records and files
record relationships
data elements
All of these
None of these

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