Write a query to calculate the time gap (in hours) between consecutive logins for each user.

Write a query to calculate the time gap (in hours) between consecutive logins for each user.

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: hard

标签: intellipaat, sql, topic-specific, sql, database

参考答案摘要

-- Calculate time difference in hours between consecutive logins per user SELECT user_id, login_time, TIMESTAMPDIFF( HOUR, LAG(login_time) OVER ( PARTITION BY user_id -- Restart for each user ORDER BY...

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