Count distinct users with at least one event on each calendar day.
AceStack AI
SQL Case
Daily active users
What this task practices
Daily active users is a sql case interview exercise that trains prompt interpretation, explicit assumptions, a concrete response, and a clear explanation of tradeoffs. The catalog marks it as easy difficulty. It focuses on Data Reasoning, Performance Analysis, Technical Reasoning. The signed-in workspace provides the tools for the round and evaluates the attempt against task-specific criteria. Reference solutions, hidden checks, evaluator instructions, and candidate work remain private.
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