Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trial
Shahriar Ayoubi
Courses Plus Student 9,090 PointsThe first challenge question on the Grouping, Joining and Cleaning up
The question asks to group by movie_id and get average score. All my attempts fail the check. Can I have a hint as to what is wrong with this answer? select movie_id, AVG(score) AS average from reviews group by movie_id;
It is flagged as incorrect and I cannot get past this question.
Ken Stone
6,648 PointsI came up with the same thing as you and could not figure out what the problem was: SELECT movie_id, AVG(score) AS average FROM reviews GROUP BY movie_id;
2 Answers
jamigibbs
2,161 PointsAlso got hung up with the "SELECT movie_id" bit. Small correction to John's answer ( "reviews" instead of "review"):
Select AVG(score) AS average from reviews GROUP BY movie_id
Shahriar Ayoubi
Courses Plus Student 9,090 PointsThank you very much for answering the question.
John Magee
Courses Plus Student 9,058 PointsJohn Magee
Courses Plus Student 9,058 PointsI don't usually give averages but this one is VERY stupid and poorly worded - it in fact SHOULD NOT WORK .
Select AVG(score) AS average from review GROUP BY movie_idYup - you didn't need to include movie_id