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Databases Reporting with SQL Aggregate and Numeric Functions Counting Groups

Posted by theteamtreehouse
theteamtreehouse
3,472 Points

Why wouldn't this also work?

SELECT count(genre) AS total_genres FROM books GROUP BY genre;

1 Answer

Tim Spangler
Tim Spangler
3,538 Points
Tim Spangler
Tim Spangler
3,538 Points

Looks like it's asking you to count number of books per genre the above will give you number of genres. The below should do the trick.

SELECT genre, count(*) AS genre_count

FROM books

GROUP BY genre