摘要: 传统方式(使用CTE): sql WITH ranked_data AS ( SELECT user_id, ip, country_code, os, RANK() OVER (PARTITION BY user_id ORDER BY log_datetime DESC) AS previous 阅读全文
posted @ 2025-10-20 16:53 ---江北 阅读(6) 评论(0) 推荐(0)
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