使用别名在MySQL中带有空格的AS查询

Question

i have this challenge on tree house

We're back in our e-commerce database. There's a products table with the columns id, name, description and price. Can you retrieve both the name and description aliased as "Product Name" and "Product Description".

And my code is

SELECT name  AS 'Product Name' , description  AS ' Product Description' FROM  products;

But is says an error..

Can you please tell me where i am doing it wrong? thanks

The columns you selected were named Product Name, Product Description and not 'Product Name' and 'Product Description'.

Answer 1

As the exercise you posted says, the column alias names must be without ' . Since the aliases have spaces in them, you would need to enclose the names with [] , not with ' .

Try this:

SELECT name AS [Product Name], description AS [Product Description] FROM  products;

Answer 2

It seems the task 1 is waiting for double quotes but you're using single quotes.

Anyway, you can use single quotes, it's correct.

Answer 3

SQL identifiers must be in backticks when using MySQL. You put single quotes around the column names.

And by the way: You have an extra space in ' Product Desciption'

Answer 4

Backticks work well for Mysql. Try this

SELECT name  AS `Product Name` , description  AS `Product Description` FROM  products;