Welcome to the Treehouse Community
The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.
Not sure what I am missing, eyes going crossed. If you can help me see the invisible I would be grateful.
Here is the problem:
Challenge Task 1 of 2 In the library database, how many books are with the genre of "Science Fiction"?
Alias the result as scifi_book_count.
The books table has the columns id, title, author, genre and first_published.
Here is my query as asked but it's not giving me the little green check mark. Any thoughts on what I am missing?
BTW its early and my coffee isn't fully activated so don't judge to harshly :)
SELECT COUNT(DISTINCT genre) as "scifi_book_count" FROM books WHERE genre = "Science Fiction";
Since you are counting the number of books you don't want to use the distinct clause. Your query will return 1 since there is only one distinct genre "Science Fiction". It should be:
SELECT COUNT(*) as "scifi_book_count" FROM books WHERE genre = "Science Fiction";