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Development Tools Database Foundations SQL Calculating, Aggregating and Other Functions String Functions

Posted by JoAnna Howell
JoAnna Howell
7,191 Points

Unknown column 'first_name' in 'field list'

Select the "first_name" followed by the username in parentheses and alias it as "display_name". For example "Andrew (chalkers)". There's a space between the end of the first_name and username in parentheses.

My code: SELECT CONCAT(first_name, " ", username) AS display_name FROM users

Results showed exactly what I requested in code but receive error... Note that the task did not say to reference a database so I DID add that. OK username wasn't in parentheses but I can't get that to happen either. Is this the problem with the error?

1 Answer

Chase Marchione
Chase Marchione
155,055 Points
Chase Marchione
Chase Marchione
155,055 Points

You're very close: you're just missing the parentheses that should go around the username.

SELECT CONCAT(first_name, " (", username, ")") AS display_name FROM users