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
Jenn Giulietti
4,888 PointsGROUP OF ROWS SQL
SQL is driving me crazy today. I am just missing something. Please help
**challenge*In the library database there's a books table. There are id, title, author, genre and first_published columns.
Write a query to count all the unique genres in the books table. Alias it as total_genres.
Type in your command below, then press Ctrl-Enter.
Bummer: There's something wrong with your SQL statement. Please review your code and try again. genre,
***my answer
SELECT genre, COUNT (DISTINCT genres) AS "total_genres" FROM books;
1 Answer
Joseph Yhu
PHP Development Techdegree Graduate 48,635 Points- You should select just the count, not the genre too.
- The
genresinCOUNT (DISTINCT genres)should just begenre.