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Databases Reporting with SQL Aggregate and Numeric Functions Counting Groups

Posted by kelvinvockins
kelvinvockins
6,906 Points

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

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,971 Points

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

kelvinvockins
kelvinvockins
6,906 Points
kelvinvockins
kelvinvockins
6,906 Points

thanks