--测试数据
declare @T table(yd varchar(10),rs int)
insert @T
select '2006-1',5 union all
select '2006-2',8 union all
select '2006-5',10 union all
select '2006-8',3 union all
select '2006-12',10

select top 12 mon=identity(int,1,1) into #mon from syscolumns

select yd=a.yd+ltrim(b.mon),rs=isnull(c.rs,0) from 
    (select distinct yd=left(yd,5) from @T) a 
    cross join #mon b
    left join @T c
    on a.yd+ltrim(b.mon)=c.yd

/*
yd    rs
2006-1    5
2006-2    8
2006-3    0
2006-4    0
2006-5    10
2006-6    0
2006-7    0
2006-8    3
2006-9    0
2006-10    0
2006-11    0
2006-12    10
*/

--删除测试
drop table #mon