# From users, return COUNT(*) AS total, COUNT(DISTINCT age_bucket) AS distinct_buckets, and COUNT(age_

Canonical URL: <https://datadriven.io/problems/from-users-return-count-as-total-countdistinct-agebuc-8876923c>

Domain: SQL · Difficulty: medium

## Problem

From users, return COUNT(*) AS total, COUNT(DISTINCT age_bucket) AS distinct_buckets, and COUNT(age_bucket) AS non_null_buckets on one row. (DISTINCT ignores NULL.)

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