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General Discussion

Posted by Chris Collins
Chris Collins
2,490 Points

Grouping, Joining and Cleaning Up code challenge part 1 of 3

hey guys

heres the request

Group all reviews by "movie_id" and get the average "score" and alias it as "average".

heres my code

SELECT movie_id, AVG(score) AS average FROM reviews GROUP BY movie_id;

it works in MYSQL so id dont see whats wrong with it can someone help me out.

2 Answers

Andrew Shook
Andrew Shook
31,709 Points
Andrew Shook
Andrew Shook
31,709 Points

The problem only asks for the average score and not the movie_id. So you only need to select the score and get its average. Remove movie_id from the select portion of the query and it should look something like this : select AVG(score) as average from reviews group by movie_id; I just tried this query and it worked for me. Hope this helps.

Grant LeMahieu
Grant LeMahieu
11,301 Points
Grant LeMahieu
Grant LeMahieu
11,301 Points

great help Andrew Shook. Thanks.