题解 | #不同学校类型的三日留存率#
不同学校类型的三日留存率
https://www.nowcoder.com/practice/af51f1334b814e6caa512483a60485d2
SELECT school_type, sum(3daycnt)/sum(uidcnt) trdays FROM ad_channel_register_retention_uid GROUP BY school_type
不同学校类型的三日留存率
https://www.nowcoder.com/practice/af51f1334b814e6caa512483a60485d2
SELECT school_type, sum(3daycnt)/sum(uidcnt) trdays FROM ad_channel_register_retention_uid GROUP BY school_type
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