SQL Server數據庫動態交叉表的參考示例

SQL Server數據庫動態交叉表的參考示例:

--建立測試環境

以下爲引用的內容：

set nocount on

create table test(model varchar(20),date int ,qty int)

insert into test select 'a','8','10'

insert into test select 'a','10','50'

insert into test select 'b','8','100'

insert into test select 'b','9','200'

insert into test select 'b','10','100'

insert into test select 'c','10','200'

insert into test select 'd','10','300'

insert into test select 'e','11','250'

insert into test select 'e','12','100'

insert into test select 'f','12','150'

go

--測試

declare @sql varchar(8000)

set @sql='select model,'

select @sql=@sql+'sum(case when

date='''+cast(date as varchar(10))+''' then qty else 0 end)

['+cast(date as varchar(10))+'],'

from (select distinct top 100 percent  date

 from test order by date)a

set @sql =left(@sql,len(@sql)-1)+' from test group by model'

exec(@sql)

--刪除測試環境
drop table test
 set nocount off

/**//*
model                8           9           10          11          12
-------------------- ----------- ----------- ----------- ----------- -----------
a                    10          0           50          0           0
b                    100         200         100         0           0
c                    0           0           200         0           0
d                    0           0           300         0           0
e                    0           0           0           250         100
f                    0           0           0           0           150
*/