日期:2014-05-18 浏览次数:20798 次
select b,c,min(a) a from tb group by b,c order by a desc
------解决方案--------------------
declare @t table (b int,c int,a int)
insert into @t
select 1,1,4 union all
select 1,1,2 union all
select 2,2,3 union all
select 3,3,6 union all
select 2,2,5 union all
select 3,3,1
SELECT distinct b,c from @t
/*
b c
----------- -----------
1 1
2 2
3 3
*/