select (
case
when
age>=25
then
'25岁及以上'
else
'25岁以下' end)
as age_cut,
count(device_id) as number
from user_profile
#按条件做分类
group by age_cut;
select (
case
when
age>=25
then
'25岁及以上'
else
'25岁以下' end)
as age_cut,
count(device_id) as number
from user_profile
#按条件做分类
group by age_cut;