日期:2014-05-18 浏览次数:20590 次
go create view test as select [nianfen]=dateadd(yy,t2.ID-1,t1.sj) from (select sj= '1998-05-06',sj2= '2002-01-04')t1 , sysobjects t2 where datediff(yy,t1.sj,t1.sj2)!<t2.ID-1 go select * from test nianfen ------------------------------------------------------ 1998-05-06 00:00:00.000 1999-05-06 00:00:00.000 2000-05-06 00:00:00.000 2001-05-06 00:00:00.000 (所影响的行数为 4 行)
------解决方案--------------------
create view test as select [nianfen]=year(dateadd(yy,t2.ID-1,t1.sj))--改为显示年份 from (select sj= '1998-05-06',sj2= '2002-01-04')t1 , sysobjects t2 where datediff(yy,t1.sj,t1.sj2)!<t2.ID-1 go select * from test nianfen ----------- 1998 1999 2000 2001 (所影响的行数为 4 行)
------解决方案--------------------
create proc test( @sj datetime,--'1998-05-06' @sj2 datetime--'2002-01-04' ) as declare @ta table(nianfen int) while year(@sj)!>year(@sj2) begin insert @ta select year(@sj) set @sj=dateadd(yy,1,@sj) end select * from @ta go exec test '1998-05-06','2002-01-04' nianfen ----------- 1998 1999 2000 2001 2002 (所影响的行数为 5 行)
------解决方案--------------------
视图改一下:
create view test
as
select [nianfen]=dateadd(yy,t2.ID-1,t1.sj)
from
(select sj= '1998-05-06',sj2= '2002-01-04')t1
,
sysobjects t2
where
datediff(yy,t1.sj,t1.sj2)!<t2.ID-1
union all
select '2002-01-04' --添加记录
------解决方案--------------------
视图不可以传参:
漏了一个year:
create view test
as
select [nianfen]=dateadd(yy,t2.ID-1,t1.sj)
from
(select sj= '1998-05-06',sj2= '2002-01-04')t1
,
sysobjects t2
where
datediff(yy,t1.sj,t1.sj2)!<t2.ID-1
union all
select year('2002-01-04') --添加记录