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2020-03-05 - Midterm Review

I got a few terminology things wrong

• class → entity class
• Rows of a database aren’t instances, they’re tuples
  • I disagree with this question
  • Both are valid answers
  • And the question doesn’t distinguish between which of those is better.
• Transitive dependencies in the functional dependencies don’t count
• MEI statements only need to specify the primary key once
  • Really?
  • So, if A(1) references C(1) and B(1) references C(1), only one statement needs to exist?