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

Databases Reporting with SQL Aggregate and Numeric Functions Counting Results

Posted by xczurymqdj
xczurymqdj
2,289 Points

I've been stuck on this question for some bit now. Im not sure whats wrong with my code. Can i get some help Please?

Heres the code that I've been using:

SELECT * COUNT (DISTINCT genre) "Science Fiction" AS scifi_book_count FROM books;

1 Answer

Jason Larson
Jason Larson
8,358 Points
Jason Larson
Jason Larson
8,358 Points

You're not concerned with distinct values, and even if you were, you are trying to retrieve the count of distinct genres (and that is not the right syntax for that, either), not the count of books in that genre. You want to count all the books where the genre is "Science Fiction", so you would do it like this:

SELECT COUNT(*) AS scifi_book_count FROM books where genre = "Science Fiction";