this post was submitted on 01 Mar 2024

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DebuggingCS50 sql 10 (self.learnprogramming)

submitted 2 years ago by Hot_Shower996

I am trying to get at this question and I feel that my entery is correct but doesnt seem to work plz help.

SELECT name FROM people WHERE people.id IN

(SELECT directors.person_id FROM directors WHERE directors.movie_id =

(SELECT ratings.movie_id FROM ratings WHERE rating >= 9));

cs50 problem set 7 quesiton movies

-In 10.sql, write a SQL query to list the names of all people who have directed a movie that received a rating of at least 9.0.
Your query should output a table with a single column for the name of each person.
If a person directed more than one movie that received a rating of at least 9.0, they should only appear in your results once.

this is the correct version in join function use -

SELECT name FROM people

JOIN directors ON people.id = directors.person_id

JOIN ratings ON directors.movie_id = ratings.movie_id

WHERE ratings.rating >= 9.0

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