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Exam 1 Ch1-4 | INFO 3233 - Data and Information Management, Quizzes of Deductive Database Systems

University of North Carolina (UNC) - Charlotte Deductive Database Systems

Class: INFO 3233 - Data and Information Management; Subject: Management Information Systems; University: University of North Carolina - Charlotte; Term: Fall 2014;

Typology: Quizzes

2015/2016

Uploaded on 09/26/2016

akindler29 🇺🇸

2 documents

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TERM 1

Data

DEFINITION 1

"Raw Facts"

TERM 2

Field

DEFINITION 2

A character or group of characters that have a specific

meaning .A field is used to define and store data

TERM 3

Record

DEFINITION 3

a logically connected set of one or more fields that describes

a nounEx- a customers name and address

TERM 4

File

DEFINITION 4

a collection of related records

TERM 5

Metadata

DEFINITION 5

data about data

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Data

"Raw Facts"

TERM 2

Field

DEFINITION 2

A character or group of characters that have a specific

meaning .A field is used to define and store data

TERM 3

Record

DEFINITION 3

a logically connected set of one or more fields that describes

a nounEx- a customers name and address

TERM 4

File

DEFINITION 4

a collection of related records

TERM 5

Metadata

DEFINITION 5

data about data

Entity

Anything about which data are to be collected and stored

TERM 7

Attribute

DEFINITION 7

A characteristic of an entity

TERM 8

Relationship

DEFINITION 8

Describes association aoming entities types:-one to many-

many to many-one to one

TERM 9

Exam 1 Ch1-4 | INFO 3233 - Data and Information Management, Quizzes of Deductive Database Systems

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Partial preview of the text

Download Exam 1 Ch1-4 | INFO 3233 - Data and Information Management and more Quizzes Deductive Database Systems in PDF only on Docsity!

Data

"Raw Facts"

TERM 2

Field

DEFINITION 2

A character or group of characters that have a specific

meaning .A field is used to define and store data

TERM 3

Record

DEFINITION 3

a logically connected set of one or more fields that describes

a nounEx- a customers name and address

TERM 4

File

DEFINITION 4

a collection of related records

TERM 5

Metadata

DEFINITION 5

data about data

Entity

Anything about which data are to be collected and stored

TERM 7

Attribute

DEFINITION 7

A characteristic of an entity

TERM 8

Relationship

DEFINITION 8

Describes association aoming entities types:-one to many-

many to many-one to one

TERM 9

Constraint

DEFINITION 9

a restriction placed on the data

TERM 10

Relational Model

DEFINITION 10

hides complexity from the user by managing all the physical

details and allowing the user to work at the logical level the

relational diagram represents entities attributes and

relationships

Table

two-dimensional structure composed of rows and columns

contains group of related entity occurrences

TERM 17

Key

DEFINITION 17

one or more attributes that determine other attributes

TERM 18

Determination

DEFINITION 18

if you know the value of attribute A, you can look up or

determine the value of attribute BEx: if you know the Student

ID Number you can then determine the Student Name

TERM 19

Functional Dependence

DEFINITION 19

Attribute B is functionally dependent on attribute A if each

value in column A determines one and only one value in

column B

TERM 20

Composite Key

DEFINITION 20

composed of more than one attribute

Super Key

Any key that uniquely identifies each row. A superkey

functionally determines all of the entity's attributes

TERM 22

Candidate Key

DEFINITION 22

a superkey without unnecessary attributes

TERM 23

Primary Key

DEFINITION 23

A candidate key selected to uniquely identify all other