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Databases

Posted by Erik Sorensen
Erik Sorensen
13,846 Points

No Explanation for this Task? What's up?

I have tried about 10 possible solutions with no luck. This is the latest I've tried:

SELECT title, author FROM books WHERE LOWER(title) = "lowercase_title" + UPPER(author) = "uppercase_author";

Challenge Task 1 of 2

In a library database there's a books table. There's an id, title, author, genre and first_published column. Write a query that will return only the title and author. Bring back the title in lowercase and the author in uppercase. Alias them as lowercase_title and uppercase_author respectively.

I really wish these video teachers would do a better job at walking through the process to come up with solutions. They don't need to give the answers but at least demo the process. No where did it show combining LOWER and UPPER along with aliasing items.

Kind of sad to have to spend so much time without resolution. Even the "cheat sheet" is useless.

Anyone have any ideas?

5 Answers

jcorum
jcorum
71,830 Points 
SELECT LOWER(title) AS lower_case_title, UPPER(author) AS upper_case_author FROM books;
Lax Shah
Lax Shah
546 Points
Lax Shah
Lax Shah
546 Points

SELECT title, LOWER (title) AS lowercase_title, author, UPPER (author) AS uppercase_author FROM books;

WHAT is wrong in this?

Hannes Erlandsson
Hannes Erlandsson
7,249 Points
Hannes Erlandsson
Hannes Erlandsson
7,249 Points

Did you type it correctly Mr. Friberg?

Peter Hope
Peter Hope
Courses Plus Student 5,849 Points

Hmm, sorry jcorum, I receive after trying your code .... Bummer: Your query didn't retireve all the books with just the lowercase_title first and the uppercase_author second.

naga Shanmukha
PLUS
naga Shanmukha
Courses Plus Student 12,482 Points
naga Shanmukha
naga Shanmukha
Courses Plus Student 12,482 Points

challenge 1

SELECT LOWER(title) AS lowercase_title, UPPER(author) AS uppercase_author FROM books;

Ali Al Hudari
Ali Al Hudari
9,876 Points
Ali Al Hudari
Ali Al Hudari
9,876 Points

The right answer should be as shown below:

SELECT LOWER(title) AS "lowercase_title", UPPER(author) AS "uppercase_author" FROM books;

Erik Sorensen
Erik Sorensen
13,846 Points
Erik Sorensen
Erik Sorensen
13,846 Points

Thanks jcorum. I could have sworn that I tried that and it didn't work. I may have put the uppercase_author and lowercase_title in "".