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Databases

Alina Li
Alina Li
1,820 Points
Posted by Alina Li
Alina Li
1,820 Points

CAn't retrieve the longest book...

i've got an error: your query doesn't report the longest book

my code is below: select title || " " || length(title) as longest_length from books order by length(title) desc limit 1

it returns a Harry Potter book but there is an error, what's wrong?

2 Answers

Tyler Whiting
Tyler Whiting
1,284 Points
Tyler Whiting
Tyler Whiting
1,284 Points

select title || " " || length(title) as longest_length from books order by length(title) desc limit 1 SELECT title, LENGTH(title) AS longest_length FROM books ORDER BY longest_length DESC LIMIT 1;

It looks like you are missing the comma after the first column in your SELECT statement, and you want to ORDER BY the alias of longest_length

Alina Li
Alina Li
1,820 Points
Alina Li
Alina Li
1,820 Points

Yeah, it works! thank you very much