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Databases Reporting with SQL Aggregate and Numeric Functions Counting Results


Objective: 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.


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

I have a disconnect somewhere that but I am not sure where I am miss understanding. Help in the right direction?

1 Answer

Its asking for the total of books with the genre "Science Fiction" not Distinct/different. Also, you need to move your WHERE keyword.

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