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Introduction to Database System

Introduction to Database System
Prior to 1970, all data was stored in separate files, which were mostly stored on reels of magnetic tape.

True
False

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Introduction to Database System
Which of the following is NOT a basic element of all versions of the E-R model?

Relationships
Primary keys
Entities
Attributes

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Introduction to Database System
Which of the following products implemented the CODASYL DBTG model?

R:base
dBase-II
DB2
IDMS

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Introduction to Database System
What software packages are commonly used for businesses that have to track extensive lists of clients and inventory?

Custom made programs
Special purpose packages
Data management packages
Single function application packages
None of these

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Introduction to Database System
A form defines

where data is placed on the screen
both of the listed here
none of the listed here
the width of each field

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Introduction to Database System
The distinguishable parts of a record are called

files
None of these
fields
data
database

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