Union the usernames from users with account_status 'active' and the user_ids cast to varchar from tr

A medium SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.

Domain

SQL

Difficulty

medium

Problem

Union the usernames from users with account_status 'active' and the user_ids cast to varchar from transactions where quantity > 4, aliased to identifier. Use UNION (distinct). Order by identifier ascending.

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