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Databases

Adrianne Padua
Adrianne Padua
7,506 Points
Posted by Adrianne Padua
Adrianne Padua
7,506 Points

"GROUP BY" Challenge Task 1 Help

I don't understand where I went wrong with this query:

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

It kept giving me a "Bummer" message in return. It's asking me to group all reviews by movie_id with an average score and alias it as "average." Am I missing something here?

1 Answer

Salman Akram
PLUS
Salman Akram
Courses Plus Student 40,065 Points
Salman Akram
Salman Akram
Courses Plus Student 40,065 Points

Hi Adrianne,

So close!

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

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

You just need to remove movie_id in the beginning, the question only asked about AVG alias with score and then group by movie_id.

:smile:

-Salman

Adrianne Padua
Adrianne Padua
7,506 Points
Adrianne Padua
Adrianne Padua
7,506 Points

I was following along with the video and was paying more attention to what I did rather than the question. I didn't know that you could do that with the operator keywords directly (from SELECT, I mean). Thank you!

Salman Akram
Salman Akram
Courses Plus Student 40,065 Points

You are welcome, you can definitely do anything to play around.

Happy Coding!