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Querying Relational Databases

  • Why We Make Databases "Relational" 2:31
  • Database Normalization 1:33
  • How Normalization Helps Us 2:54
  • Database Normalization Review 5 questions
  • Set Theory and Relational Databases 4:36
  • Theoretical Groundwork 0:54
  • Set Theory Review 5 questions

Well done!

You have completed Set Theory Review!

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Venn diagram that categorizes people with brown eyes in the left-most part of the circle. This group includes: Rose, Janet, and Matt. It categorizes people with Dark Hair in the right most part of the circle. This group includes: Julia, Peter, and Dorian. This diagram also categorizes people with both brown eyes and dark hair. This group is in the middle and includes: Sue and John.

Quiz Question 1 of 5

According to the diagram, which people have both brown eyes and dark hair?

Choose the correct answer below:

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  • A
    Julia, Peter, Dorian
  • B
    Rose, Janet, Matt
  • C
    Sue, John
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