create table #t(Uname varchar(10),age int) insert #t select '啊啊',19 union all select '信息',23 union all select '宝宝',31 union all select '喔喔',21 union all select '米米',6 select nnd as '年龄段',count(*) as '人数' from( select case when age>=1 and age<=10 then '1-10' when age>=11 and age<=20 then '11-20' when age>=21 and age<=30 then '21-30' when age>=31 and age<=40 then '31-40' end as nnd,uname from #t )a group by nnd
SQL语句 按年龄段分组统计人数
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转载自daoshud1.iteye.com/blog/1740896
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