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Describe and illustrate the process of normalizing

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Reference no: EM131282278

Consider the following table which lists dentist/patient appointment data. A patient is given an appointment at a specific time and date with a dentist located at a particular surgery. On each day of patient appointments, a dentist is allocated to a specific surgery for that day.

Staff_No

Dentist_Name

Pat_No

Pat_Name

Appointment

Data               Time

Surgent_No

S1011

S1011

S1024

S1024

S1032

S1032

Tony Smith

Tony Smith

Helen Pearson

Helen Pearson

Robin Plevin

Robin Plevin

P100

P105

P108

P108

P105

P110

Gillian White

Jill Bell

Ian Mackay

Ian Mackay

Jill Bell

John Walker

12-Sep-08      10.00

12-Sep-08      12.00

12-Sep-08      10.00

14-Sep-08      14.00

14-Sep-08      16.30

15-Sep-08      18.00

S15

S15

S10

S10

S15

S13

Describe and illustrate the process of normalizing the above table to 3NF. State any assumptions you make about the data shown in this table.

Identify the functional dependencies represented by the attributes show in the 3NF tables.

Suppose that a data warehouse consists of the three dimensions time, doctor, and patient, and the two measures count and charge, where charge is the fee that a doctor charges a patient for a visit.

Draw a star schema diagram for the above data warehouse.

Reference no: EM131282278

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