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Question 1: Explain the distinctions among the terms primary key, candidate key, and
superkey.Question 2: Consider a database that is used to record the marks that students get in
different exams of different course offerings. Construct an E-R diagram that models exams as
entities, and uses a ternary relationship, for the database.

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Question 1 Explain the distinctions among the terms primary.pdf

  • 1. Question 1: Explain the distinctions among the terms primary key, candidate key, and superkey.Question 2: Consider a database that is used to record the marks that students get in different exams of different course offerings. Construct an E-R diagram that models exams as entities, and uses a ternary relationship, for the database.