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Write a SQL query to find users to recommend specific artists

SQLmedium0.3 min readPremium

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Expert AnswerPremium

59 wordsInterview-ready

Find users who listened to similar artists but not target: SELECT u.user_id FROM user_listens u JOIN artist_fans a ON u.artist_id = a.artist_id WHERE a.artist_id = :target_artist_id AND u.user_id NOT IN (SELECT user_id FROM user_listens WHERE artist_id = :target_artist_id). **Why**: Affinity-based recommendation. Collaborative filtering uses co-listening; this is simpler....

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