# Count the number of transactions each user has made, including users with zero transactions

Canonical URL: <https://datadriven.io/problems/count-the-number-of-transactions-each-user-has-made-includi-0adc3972>

Domain: SQL · Difficulty: medium

## Problem

Count the number of transactions each user has made, including users with zero transactions. Return username and the transaction count. Order by count descending, then username ascending.

## Related

- [All practice problems](https://datadriven.io/problems)
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