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Databases Reporting with SQL Ordering, Limiting and Paging Results Limiting Results

Posted by ct7
ct7
Courses Plus Student 964 Points

Challenge task 1 of 2

Can anyone help with what the query should be for the below question please, I think I'm missing the point of the exercise and keep getting it wrong. Thanks.

"We're using the library database again. There's a books table. There's a title, author, genre and first_published column.

Write a query to obtain the first 5 books in the Fantasy genre ordered by the year released. Oldest first. Select all columns."

2 Answers

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,967 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,967 Points

Here you select all columns (SELECT *); have a WHERE condition (genre = Fantasy); order by date and limit to 5 records 

SELECT * FROM books WHERE genre = 'Fantasy' ORDER BY first_published LIMIT 5;
Balazs Peak
Balazs Peak
46,160 Points
Balazs Peak
Balazs Peak
46,160 Points

I'm not sure what did you miss since you didn't provide your bad answers.

The idea is simple,

  • select each colums from the books table
  • select records only with the genre "Fantasy"
  • order them by year of publishing, in ascending order (this means oldest first in the context of date)
  • put the first 5 only in the result set (limit keyword)
select * from books where genre is "Fantasy" order by first_published asc limit 5