Q4. Identify the primary key(s) in the table below. Draw as-is dependency diagram and identify types of dependencies. Is this table 3rd normal form? If not, convert it to 3rd normal form. EmployeelD | Name City PayDate Amount 1 Espinosa Pittsburgh 1/31/2020 100 1 Espinosa Pittsburgh 2/29/2020 | 200 1 Espinosa Pittsburgh 3/31/2020 | 250 2 Lerch Los Angeles 1/31/2020 | 120 2 Lerch Los Angeles 2/29/2020 | 100 2 Lerch Los Angeles 3/31/2020 | 400 3 Barry Pittsburgh 1/31/2020 300 3 Barry Pittsburgh 2/29/2020 | 100 3 Barry Pittsburgh 3/31/2020 | 200

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Q4. Identify the primary key(s) in the table below. Draw as-is dependency diagram and identify
types of dependencies. Is this table 3rd normal form? If not, convert it to 3rd normal form.
EmployeelD | Name
City
PayDate
Amount
Espinosa | Pittsburgh
1/31/2020| 100
Espinosa Pittsburgh
2/29/2020 200
Espinosa Pittsburgh
3/31/2020 250
2
Lerch
Los Angeles
1/31/2020
120
Lerch
Los Angeles 2/29/2020 | 100
Lerch
Los Angeles 3/31/2020 | 400
Barry
Pittsburgh
1/31/2020 | 300
Barry
Pittsburgh
2/29/2020| 100
Barry
Pittsburgh
3/31/2020 | 200
Transcribed Image Text:Q4. Identify the primary key(s) in the table below. Draw as-is dependency diagram and identify types of dependencies. Is this table 3rd normal form? If not, convert it to 3rd normal form. EmployeelD | Name City PayDate Amount Espinosa | Pittsburgh 1/31/2020| 100 Espinosa Pittsburgh 2/29/2020 200 Espinosa Pittsburgh 3/31/2020 250 2 Lerch Los Angeles 1/31/2020 120 Lerch Los Angeles 2/29/2020 | 100 Lerch Los Angeles 3/31/2020 | 400 Barry Pittsburgh 1/31/2020 | 300 Barry Pittsburgh 2/29/2020| 100 Barry Pittsburgh 3/31/2020 | 200
Expert Solution
Step 1

There is no primary key in the above table because table is not normalized. We need to split the tables because it is not upto 3rd Normal form. 

 

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