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Development Tools Database Foundations SQL Calculating, Aggregating and Other Functions Grouping, Joining and Cleaning Up

The first question is asking me to group all reviews and make an average score under the alias "average". help plz!

The first question is asking me to group all reviews and make an average score under the alias "average". help plz!

Can you post your attempt?

2 Answers

Hi Alon, if you have named your DB reviews.

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

King Penson II
King Penson II
16,413 Points

That works perfectly, thanks a lot!

You are welcome King :)

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