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Rhea Khanna
2,838 PointsFinding data using SQL
In the library database there's a books table with the columns id, title, author, genre and first_published. Find the book with the longest title. Show the title and then the length. Alias the result of the length calculation to be longest_length. Only retrieve the longest book.
my answer: SELECT title FROM books WHERE "Length" = "longest_length" DESC LIMIT 1;
I am getting this question wrong could someone please help me by explaining what I am doing wrong
1 Answer
Daniel L.
10,837 PointsThere are a couple different ways of doing this, at least to my knowledge, there might be more.
Option 1:
SELECT title, LENGTH(title) AS longest_length
FROM books
ORDER BY longest_length
LIMIT 1;
Option 2:
SELECT title, MAX(LENGTH(title)) AS longest_length
FROM books;