题解 | #统计2021年10月每个退货率不大于0.5的商品各项指标#

select product_id,round(sum(if_click)/count(*),3) ctr,
if(sum(if_click)<>0,round(sum(if_cart)/sum(if_click),3),0) cart_rate,
if(sum(if_cart)<>0,round(sum(if_payment)/sum(if_cart),3),0) payment_rate,
if(sum(if_payment)<>0,round(sum(if_refund)/sum(if_payment),3),0) refund_rate
from tb_user_event
where date_format(event_time,'%Y-%m')='2021-10'
group by product_id
having refund_rate<=0.5
order by product_id