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The following table has been wrongly designed as a relation to include study activities of students in different units (of study). The concatenated value of
The following table has been wrongly designed as a relation to include study activities of students in different units (of study). The concatenated value of Studentld and Unitld can identify each row uniquely in the table. Examine the table and answer the questions that follow tudentName Mary Smith Peter Ho Mary Smith Mary Smith Student S070123 S017277 S070123 S070123 S103456Lisa C nitName Database Database Pr Networks Project COIT20247 COIT20247 in COIT20246 nter COIT20249 Note: A student may study zero or many units. A new unit may not have any students whereas another unit may be studied by many students. Each student can get only one grade in a unit (of study). (a) Explain insertion and deletion anomalies by using the above table. (2 marks) (b) What is the highest normal form that the above table satisfies? Justify your answer (1 mark) (c) Normalise the above table into a set of relations that satisfy 3NF using the format as follows (1 mark) Relation 1 (ID1, Abc, Def...) Foreign key (ID1) references Relation 1 Note: You need not show the work-out. Write only the 3NF relations
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