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Databases

drstrangequark
drstrangequark
8,273 Points
Posted by drstrangequark
drstrangequark
8,273 Points

Not sure where the problem is with my query

The challenge is:

In the library database there's a books table. There are id, title, author, genre and first_published columns. Count all the books in each genre. Include the genre column first and the genre_count as the second column of information.

My query:

SELECT genre, COUNT(genre) AS "genre_count" FROM books WHERE genre IS NOT NULL GROUP BY genre;

It says that my query didn't return the right count but it looks like it does in the console.

1 Answer

Steven Parker
Steven Parker
231,128 Points
Steven Parker
Steven Parker
231,128 Points

The instructions didn't say to exclude the books with no specified genre from the list. So in addition to removing the filter, you'll also need to count rows instead of genre's.