SQL · Google · Hard
Consider a BigQuery dataset for a platform that records user accounts, user actions, uploaded content, moderation outcomes, and automated risk flags. All timestamps are UTC and the current date is 2025-09-01. Tables: users(user_id INTEGER, country STRING, signup_time TIMESTAMP) events(user_id INTEGER, event_time TIMESTAMP, event_type STRING) — event_type is one of 'post', 'comment', 'message', 'login' content(content_id INTEGER, uploader_user_id INTEGER, created_time…
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