COMP2350 Database Systems: Creation and Population

COMP2350 Database Systems: Creation and Population

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COMP2350 Database Systems

Questions:

•    Identify the non-trivial FDs on the relation Abnormal_Rel. Supplement your description with diagram(s).

•    Identify the Candidate key(s) of Abnormal_Rel. 

Note. How you structure your answer is flexible. One possible structure is given below.

•      Anomalies of Form_1

o    determine if the relation Abnormal_Rel is susceptible to it

o    Support your determination with adequate explanation and a small example (instance of the relation Abnormal_Rel).

•    Anomalies of Form_2

o    determine if the relation Abnormal_Rel is susceptible to it

o    Support your determination with adequate explanation and a small example (refer to the same or a different instance of the relation Abnormal_Rel).

•    Anomalies of Form_3

o    determine if the relation Abnormal_Rel is susceptible to it

o    Support your determination with adequate explanation and a small example (refer to the same or a different instance of the relation Abnormal_Rel). 

Task 3: Normalization

•    What is the highest NF that the relation Abnormal_Rel satisfies? Explain why.

•    Normalize/decompose Abnormal_Rel until you get relations that are in 3NF. Use appropriate illustration to aid the understanding of your work.

•    Check if the resultant relations are in BCNF. If not, decompose them as necessary until you get all of them in BCNF. 

Task 4: Table Creation and Population

•    Copy and paste your DDL code for creating each table/relation in BCNF obtained in Task 3.

•    Copy and paste your SQL code for inserting at least five rows of data into each of these table.

•    Copy and paste the SELECT * query to display the content of each table above, and screenshot of the content as displayed.

 

Task 5: SQL Queries

Copy and paste the SQL queries followed by their results (screenshot) for each of the following query [Query 1] List the branches (ID) of MA that have in stock at least 5 bottles of Penfold Grange 2010.

[Query 2] List details of each beer that Simone Singh will be entitled to get 20% discount on. 

[Query 3] Generate a list of all email addresses of members whose card will expire in the month after the coming month, ordered appropriately. 

[Query 4] Determine how many times Penfold Grange 2010 has gone on sale since Covid-19 related lockdown started (assume it to be March 01, 2020). 

COMP2350 Database Systems

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