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 Paje Schantz
Paje Schantz
1,775 Points

Can't figure this code

Here's the code I entered: SELECT genre COUNT (DISTINCT "Science Fiction") AS "scifi_book_count" FROM books;

2 Answers

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

You've got the right idea, but a few syntax issues:

  • the instructions ask you to only display the count, not the genre column
  • the argument to COUNT should be a column name (or "*")
  • to filter only the Science Fiction books, add a WHERE clause at the end
Paje Schantz
Paje Schantz
1,775 Points
Paje Schantz
Paje Schantz
1,775 Points

thank you!