题解 | #三日留存和七日留存#

三日留存和七日留存

https://www.nowcoder.com/practice/2204f907151747ac85b2f0bca9579101

select

sum(3daycnt)/sum(uidcnt) as trdays,

sum(7daycnt)/sum(uidcnt) as sedays

from ad_channel_register_retention_uid

where from_put = 'Oppo'

group by null

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