Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Databases Modifying Data with SQL Adding Data to a Database Adding Data With SQL


We have an eCommerce database and it has a products table. It has the columns id, name, description and price.

Add a new product to the products table. Use any valid values you want. All columns are required. The id column is auto incrementing.

Ive already re-watched the video many times, I seem to be perplex by this question, is auto incrementing usually involve NULL? I will attached again in the AM when my mind is fresh..


2 Answers

Steven Parker
Steven Parker
229,645 Points

You're quite right, the value for the auto-incrementing column can be NULL. You can also omit setting them entirely.

For a more specific answer, show the code line you were entering.

I don't understand either. I wrote:

INSERT INTO products VALUES (NULL, isabelle, gul, 19);

I got the message: "Bummer: Was expecting 4 entries in the products table. There's only 3."

Steven Parker
Steven Parker
229,645 Points

After seeing the actual code, the issue is now clear. It seems that two of the supplied values are literal strings, but they are not enclosed in quotes. Try this:

INSERT INTO products VALUES (NULL, 'isabelle', 'gul', 19);