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 Reporting with SQL Working with Text Concatenating Text

Stacy Villibord
Stacy Villibord
2,017 Points

Correct my syntax

In the library database there's a patrons table listing all the users of the library. The columns are id, first_name, last_name, address, email, library_id and zip_code.

Generate a list of strings that are in the following format: Andrew Chalkley andrew@teamtreehouse.com. Concatenate the first name, last name and email address for all users.

Alias it to to_field. This will be used in the "To" field in email marketing.

SELECT first_name || ' ' || last_name || ' ' || email FROM patrons AS "to_field";

1 Answer

Steven Parker
Steven Parker
231,184 Points

I see two issues at first glance:

  • the alias must immediately follow the concatenated field (before the FROM clause)
  • the email address needs to be surrounded in <> characters (as part of the concatenated literals)