Relational Storage Quiz

5 questions Pass: 70% +25 pts (50 with Pro)

Quiz covering Design Relational Data Storage

What you'll be asked

  1. Which of the following database constraints is used to ensure that all values in a column are unique and not null?
  2. When designing a relational schema, what is the primary purpose of normalization?
  3. You have a 'Orders' table and a 'Customers' table. Which mechanism should you implement to ensure that an order cannot be created for a customer ID that does not exist?
  4. In a relational database, what is the 'Second Normal Form' (2NF) specifically intended to address?
  5. When designing a high-read, low-write system, which strategy for handling a 'Many-to-Many' relationship is most efficient for complex reporting queries?

Answers and explanations come after you submit.