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PHP

Posted by Kohane Kagami
Kohane Kagami
12,390 Points

Please help me with this problem.

In the library database, how many books are with the genre of "Science Fiction"? Alias the result as scifi_book_count.

My code is as follows:

SELECT count(*) from books where genre="Science Fiction" as "scifi_book_count";

5 Answers

Simon Coates
Simon Coates
28,694 Points
Simon Coates
Simon Coates
28,694 Points

my guess is

SELECT count(*) as "scifi_book_count" from books where genre="Science Fiction" ;

but if you include a URL, I can test.

Kohane Kagami
Kohane Kagami
12,390 Points
Kohane Kagami
Kohane Kagami
12,390 Points

It worked. Thank you very much!

Lucy Li
Lucy Li
781 Points
Lucy Li
Lucy Li
781 Points

I typed in

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

scific_book_count 6

But it says my query didn't perform the correct count.

Simon Coates
Simon Coates
28,694 Points
Simon Coates
Simon Coates
28,694 Points

if you specify which challenge this is related to (a url?), then i can test it. Looks okay at a glance, apart from the spelling mistake ("scific_book_count" instead of "scifi_book_count").

Lucy Li
Lucy Li
781 Points
Lucy Li
Lucy Li
781 Points

Aw it looks like it was my misspelling from this page: https://teamtreehouse.com/library/reporting-with-sql/aggregate-and-numeric-functions/counting-results-2

Thanks!

Aananya Vyas
Aananya Vyas
20,157 Points
Aananya Vyas
Aananya Vyas
20,157 Points

select count(id) AS scifi_book_count from books where genre= "Science Fiction";

try this!