1. Consider the relation PatientOf and the functional dependencies below. Describe, with examples, how redundancy, update,...

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Question

1. Consider the relation PatientOf and the functional dependencies below. Describe, with examples, how redundancy, update,...

1. Consider the relation PatientOf and the functional dependencies below. Describe, with examples, how
redundancy, update, and delete anomalies can arise.

PatientOf (patient_no, name, address, doctor_no, since)
patient_no → name, address
patient_no, doctor_no → since

2. Consider a relation with attributes R(A, B, C, D, E) that satisfies the following functional dependencies:

AB → D
AC → E
BC → D
D → A
E → B
Find all the keys that contain the attribute A.

engineering Computer-Science

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1. Consider the relation PatientOf and the functional dependencies below. Describe, with examples, how redundancy, update,...

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