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select number from master..spt_values with(nolock) where type='P'
/**解释:master..spt_values表的字段值为P的对应number字段值是从0-2047*/
--1.将字符串转换为列显示
if object_id('tb') is not null drop table tb
go
create table tb([编号] varchar(3),[产品] varchar(2),[数量] int,[单价] int,[金额] int,[序列号] varchar(8))
insert into tb([编号],[产品],[数量],[单价],[金额],[序列号])
select '001','AA',3,5,15,'12,13,14' union all
select '002','BB',8,9,13,'22,23,24'
go
select [编号],[产品],[数量],[单价],[金额]
,substring([序列号],b.number,charindex(',',[序列号]+',',b.number)-b.number) as [序列号]
from tb a with(nolock),master..spt_values b with(nolock)
where b.number>=1 and b.number=1 and number=1 and number1
/**
value
-----
朋
友
的
*/
---------
--4.提取两个日期之间的所有月份
if object_id('tb') is not null drop table tb
go
create table tb(id int identity(1,1),startDate varchar(10),endDate varchar(10))
insert into tb(startDate,endDate) select '2013-01-01','2013-09-25'
go
declare @startDate varchar(10)
declare @endDate varchar(10)
select @startDate=startDate,@endDate=endDate from tb with(nolock)
select convert(varchar(7),dateadd(mm,number,@startDate),120) as [月份]
from master..spt_values with(nolock)
where type='P' and number>=0
and dateadd(mm,number,@startDate)=1
--and number |
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