Table Column Properties Quiz

5 questions • Pass: 70% • +25 pts

Quiz covering Design and Implement a Data Model

Table Column Properties Quiz

5 questions | Pass: 70% | Earn 25 points

Questions in this quiz

A preview of the 5 questions covered. Start the quiz above to answer them, check your score, and read the explanations.

  1. 1

    Which column property ensures that a specific column cannot contain a NULL value?

  2. 2

    When designing a table, why is it recommended to use a surrogate key (e.g., an auto-incrementing integer) instead of a natural key (e.g., email address) as a Primary Key?

  3. 3

    What is the primary purpose of the 'DEFAULT' column property in a relational database?

  4. 4

    If you need to ensure that a 'DiscountPercentage' column in a 'Products' table always contains a value between 0 and 100, which constraint is most appropriate?

  5. 5

    You are designing a high-performance database and need to choose a data type for a column storing a fixed-length string of exactly 10 characters that is frequently used in JOIN operations. Which is the most efficient choice?