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  3. Intermediate Importing Data in R
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Query tweater (3)

Suppose that you have a people table, with a bunch of information. This time, you want to find out the age and country of married males. Provided that there is a married column that's 1 when the person in question is married, the following query would work.

SELECT age, country
  FROM people
    WHERE gender = "male" AND married = 1

Can you use a similar approach for a more specialized query on the tweater database?

Hướng dẫn

100 XP
  • Create an R data frame, specific, that selects the message column from the comments table where the tweat_id is 77 and the user_id is greater than 4.
  • Print specific.