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Introduction to Database System

Introduction to Database System
In a database, data is stored in spreadsheets which have rows and columns.

False
True

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Introduction to Database System
A database design may be based on existing data.

False
True

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Introduction to Database System
A compound key

None of these
uniquely identifies an item in a list
both (a) and (b)
is a combination of each unique key
is made up a several pieces of information

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Introduction to Database System
The on-line, softcopy display a customer's charge account to respond to an inquiry is an examples of a

exception report
on demand report
forecasting report
regularly scheduled report

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Introduction to Database System
A database has data and relationships.

False
True

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Introduction to Database System
Entity instances are associated by relationship classes.

False
True

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