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Introduction to Database System

Introduction to Database System
A minimum cardinality is the minimum number of entity instances that may participate in a relationship instance.

True
False

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Introduction to Database System
Properties that describe the characteristics of entities are called:

identifiers.
attributes.
entities.
relationships.

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Introduction to Database System
Data item characteristics that are important in data management include

width
spelling
language
punctuation

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Introduction to Database System
When using a database management system, the first thing that you must do is to

keep a floppy disk in readiness
load the software into your micro¬computer
activate file editor
create a database file

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Introduction to Database System
In SQL, which command is used to changes data in a table?

BROWSE
APPEND
INSERT
UPDATE

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Introduction to Database System
In a relation, the order of the columns does not matter.

False
True

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