create table A
(
属性ID int,
年份 int
)
delete a
select * From A
insert A
select 1, 2008
insert A
select 2, 2009
create table B
(
年份 int,
月份 int,
金额 int
)
insert B
select 2008,1,20
insert B
select 2008,2,30
insert B
select 2008,3,40
insert B
select 2008,4,10
insert B
select 2009,1,60
insert B
select 2009,2,25
insert B
select 2009,3,5
insert B
select 2009,4,10
select
A.属性ID,
A.年份,
max(case when (A.年份=B.年份) and (B.月份=1) then B.金额 END) as '一月',
max(case when (A.年份=B.年份) and (B.月份=2) then B.金额 END) as '二月',
max(case when (A.年份=B.年份) and (B.月份=3) then B.金额 END) as '三月',
max(case when (A.年份=B.年份) and (B.月份=4) then B.金额 END) as '四月'
From A
inner join B on A.年份 = B.年份
group by A.属性ID,A.年份
1 2008 20 30 40 10
2 2009 60 NULL 5 10
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