Consider the following table and functional dependencies: An agency called Instant Cover supplies part-time/temporary staff to hotels throughout Scotland. The table shown in Figure below lists the time spent by agency staff working at two hotels. The National Insurance Number (NIN) is unique for employee. NIN ContractNo hoursPerWeek eName hotelNo hotelLocation C1024 Edinburgh Edinburgh 113567WD 16 John Smith H25 234111XA C1024 24 Diane Hocine H25 712670ΥD C1025 28 Sarah White H4 Glasgow Glasgow 113567WD C1025 16 John Smith H4 NIN -> eName NIN , ContarctNo -> hoursPerWeek ContarctNo -> hotelNo , hotelLocation hotelNo -> hotelLocation a. The table is susceptible to update anomalies. Provide examples of insertion, deletion, and modification anomalies. b. Describe and illustrate the process of normalizing the table to 3NF. State any assumptions you make about the data shown in this table.

Oracle 12c: SQL
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ISBN:9781305251038
Author:Joan Casteel
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Chapter1: Overview Of Database Concepts
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What is the solution for this question ( using database systems normalization)
Consider the following table and functional dependencies:
An agency called Instant Cover supplies part-time/temporary staff to hotels throughout Scotland. The
table shown in Figure below lists the time spent by agency staff working at two hotels. The National
Insurance Number (NIN) is unique for employee.
NIN
ContractNo
hoursPerWeek
eName
hotelNo
hotelLocation
113567WD
C1024
16
John Smith
Н25
Edinburgh
Edinburgh
234111XA
C1024
24
Diane Hocine
Н25
712670YD
C1025
28
Sarah White
Н4
Glasgow
113567WD
C1025
16
John Smith
Н4
| Glasgow
NIN -> eName
NIN , ContarctNo -> hoursPerWeek
ContarctNo -> hotelNo , hotelLocation
hotelNo -> hotelLocation
a. The table is susceptible to update anomalies. Provide examples of insertion, deletion, and
modification anomalies.
b. Describe and illustrate the process of normalizing the table to 3NF. State any assumptions you
make about the data shown in this table.
Transcribed Image Text:Consider the following table and functional dependencies: An agency called Instant Cover supplies part-time/temporary staff to hotels throughout Scotland. The table shown in Figure below lists the time spent by agency staff working at two hotels. The National Insurance Number (NIN) is unique for employee. NIN ContractNo hoursPerWeek eName hotelNo hotelLocation 113567WD C1024 16 John Smith Н25 Edinburgh Edinburgh 234111XA C1024 24 Diane Hocine Н25 712670YD C1025 28 Sarah White Н4 Glasgow 113567WD C1025 16 John Smith Н4 | Glasgow NIN -> eName NIN , ContarctNo -> hoursPerWeek ContarctNo -> hotelNo , hotelLocation hotelNo -> hotelLocation a. The table is susceptible to update anomalies. Provide examples of insertion, deletion, and modification anomalies. b. Describe and illustrate the process of normalizing the table to 3NF. State any assumptions you make about the data shown in this table.
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