b. Indicate for each of the following potential functional dependencies, whether it is indeed a functional dependence or NOT. 1. NUMBER → TITLE 2. STARTPAGE → ENDPAGE 3. NUMBER → (STARTPAGE, ENDPAGE, PUBLICATIONS, VOLUME) 4. TECHNICAL_REPORT_ID → NUMBER 5. (PUBLICATION, VOLUME) → YEAR 6. TITLE → NUMBER
b. Indicate for each of the following potential functional dependencies, whether it is indeed a functional dependence or NOT. 1. NUMBER → TITLE 2. STARTPAGE → ENDPAGE 3. NUMBER → (STARTPAGE, ENDPAGE, PUBLICATIONS, VOLUME) 4. TECHNICAL_REPORT_ID → NUMBER 5. (PUBLICATION, VOLUME) → YEAR 6. TITLE → NUMBER
Chapter17: Creating A Database
Section: Chapter Questions
Problem 4QY
Related questions
Question
b. Indicate for each of the following potential functional dependencies, whether it is
indeed a functional dependence or NOT.
1. NUMBER → TITLE
2. STARTPAGE → ENDPAGE
3. NUMBER → (STARTPAGE, ENDPAGE, PUBLICATIONS, VOLUME)
4. TECHNICAL_REPORT_ID → NUMBER
5. (PUBLICATION, VOLUME) → YEAR
6. TITLE → NUMBER
![Consider the following relation:
ARTICLES (NUMBER, TITLE, PUBLICATION, VOLUME, YEAR, STARTPAGE, ENDPAGE,
TECHNICAL_REPORT_ID)
The relation contains information on articles published in publications (Journals). Each article
has a unique number, title, and information on where to find it (name of the publication, what
volume, and on which pages is appearing), also the ID of the technical report is specified.
The following is an illustration of the relation:
NUMBER
TITLE
PUBLICATION| VOLUME
YEAR
STARTPAGE ENDPAGE
TECHNICAL_REPORT_ID
240
Junior PC games
SAJS
15
2019
141
153
87
330
Early Childwood
SAJS
14
2016
79
95
26
330
Early Childwood
SAJS
14
2016
79
95
65
930
Data Dictionary
SAJEMS
13
2016
211
233
74
750
SACJ
P_value vs
Equilibriam
15
2020
1.
4
99
solved
770
Data missed
SAJEMS
15
2020
1.
6.
89
870
Data missed
Nature
3333
2020
33
33
89](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F48a3ab99-f772-4cf8-b009-b5874f8761ab%2Fef0e11ab-a5f4-49c9-bd8e-63ea0d45d25e%2Fun3vqpp_processed.png&w=3840&q=75)
Transcribed Image Text:Consider the following relation:
ARTICLES (NUMBER, TITLE, PUBLICATION, VOLUME, YEAR, STARTPAGE, ENDPAGE,
TECHNICAL_REPORT_ID)
The relation contains information on articles published in publications (Journals). Each article
has a unique number, title, and information on where to find it (name of the publication, what
volume, and on which pages is appearing), also the ID of the technical report is specified.
The following is an illustration of the relation:
NUMBER
TITLE
PUBLICATION| VOLUME
YEAR
STARTPAGE ENDPAGE
TECHNICAL_REPORT_ID
240
Junior PC games
SAJS
15
2019
141
153
87
330
Early Childwood
SAJS
14
2016
79
95
26
330
Early Childwood
SAJS
14
2016
79
95
65
930
Data Dictionary
SAJEMS
13
2016
211
233
74
750
SACJ
P_value vs
Equilibriam
15
2020
1.
4
99
solved
770
Data missed
SAJEMS
15
2020
1.
6.
89
870
Data missed
Nature
3333
2020
33
33
89
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