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Databases

Posted by James Ackerman
James Ackerman
14,099 Points

Using the Length function to find the longest length of a book title. Find the b

Could use some help again, please.

"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 creates a syntax error ("no such column: length")...

> SELECT title, LENGTH(title) AS longest_length FROM books ORDER BY length DESC LIMIT 1;

2 Answers

vanessadilg
vanessadilg
12,577 Points

Hi James, try to use ORDER BY longest_length because you named the column.

James Ackerman
James Ackerman
14,099 Points
James Ackerman
James Ackerman
14,099 Points

Thank you. That got it.

I was under the mistaken assumption that the word "length" after ORDER BY was a variable that I could specify rather than a column.