请教一条统计存储过程!
有表:SSJC 结构:
id roomid score xb
1 101 85 jsj
2 102 85 jsj
3 205 90 hg
4 206 70 hg
由上表统计结果插入下表:
统计表:SSCJ_Conts结构
id xb avg num
1 jsj 85 1
2 hg 80 2
注:( num 名次)
问 : 如何用存储过程实现以上统计功能
------解决方案--------------------declare @t table (id int,roomid int,score int,xb varchar(20))
insert into @t
select 1, 101, 85, 'jsj '
union all select 2, 102, 85, 'jsj '
union all select 3, 205, 90, 'hg '
union all select 4, 206, 70, 'hg '
select xb, avg(score) as avg,num=identity(int,1,1) into #tt from @t group by xb order by avg(score) desc
select * from #tt
/*
xb avg num
--------------------------------------------------
jsj 85 2
hg 80 1
*/