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Exercise

Practice with NULLs

Well done. Now that you know what NULL means and what it's used for, it's time for some more practice!

Let's explore the films table again to better understand what data you have.

Instructions 1/2

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  • 1
    • Select the title of every film that doesn't have a budget associated with it and use the alias no_budget_info.
  • 2
    • Count the number of films with a language associated with them and use the alias count_language_known.