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Bài tập

Using CASE statements

In this exercise, you will use a CASE statement to create a new column which specifies whether the Country is USA or International.

Hướng dẫn

100 XP
  • Create a new column, SourceCountry, defined from these cases:
    • When Country is 'us' then it takes the value 'USA'.
    • Otherwise it takes the value 'International'.