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Databases Reporting with SQL Aggregate and Numeric Functions Counting Groups

Reporting with sql, 2nd code challenge COUNT BY GROUP incorrect code

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.

SELECT COUNT(DISTINCT(genre)) AS total_genre FROM books GROUP BY genre;

2 Answers

The alias is total_genres. Also to get a total count of all genres you wouldn't group them.