DataCamp
Course Outline

Union (2)

100xp

UNION can also be used to determine all occurrences of a field across multiple tables. Try out this exercise with no starter code.

Instructions

  • Determine all (non-duplicated) country codes in either the cities or the currencies table. The result should be a table with only one field called country_code.
  • Sort by country_code in alphabetical order.
    Take Hint (-30xp)