select a.piaolei,a.renshu,b.mingcheng as pl
from Tbl_checkIn a,tbl_PiaoLei b
where a.piaolei=b.bianhao
and convert(char(10),CheckInTime,120) >= '2012-08-16'
and convert(char(10),CheckInTime,120) <= '2012-08-16'
and CheckInNo='01'
and left(e.mingcheng,3)='北京市'
想直接把查询出来的结果根据a.renshu只要求出总和就可以,请问应该怎么写?谢谢!
from Tbl_checkIn a,tbl_PiaoLei b
where a.piaolei=b.bianhao
and convert(char(10),CheckInTime,120) >= '2012-08-16'
and convert(char(10),CheckInTime,120) <= '2012-08-16'
and CheckInNo='01'
and left(e.mingcheng,3)='北京市'
renshu,count(1)
from
(select a.piaolei,a.renshu,b.mingcheng as pl
from Tbl_checkIn a,tbl_PiaoLei b
where a.piaolei=b.bianhao
and convert(char(10),CheckInTime,120) >= '2012-08-16'
and convert(char(10),CheckInTime,120) <= '2012-08-16'
and CheckInNo='01'
and left(e.mingcheng,3)='北京市'
)t
group by
人数