SQL Case

Messaging delivery: ordered funnel

Messaging delivery: Count senders that produced message_queued and later produced message_delivered.

What this task practices

Messaging delivery: ordered funnel 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 medium 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.