# From users, return user_id and a column greeting built by concatenating 'Hello, ' with username and

Canonical URL: <https://datadriven.io/problems/from-users-return-userid-and-a-column-greeting-built-by-co-4a12a508>

Domain: SQL · Difficulty: medium

## Problem

From users, return user_id and a column greeting built by concatenating 'Hello, ' with username and '!'. Use CONCAT. Order by user_id ascending.

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