SQLSplit拆分字符串

GO
Create function [dbo].[split]
(
@SourceSql varchar(max),
@StrSeprate varchar(10)
)
returns @temp table(line varchar(max))
as
begin
 declare @i int
 set @SourceSql = rtrim(ltrim(@SourceSql))
 set @i = charindex(@StrSeprate,@SourceSql)
 while @i >= 1
 begin
 if len(left(@SourceSql,@i-1))>0
 begin
 insert @temp values(left(@SourceSql,@i-1))
 end
 set @SourceSql=substring(@SourceSql,@i+len(@StrSeprate),len(@SourceSql)-@i)
 set @i=charindex(@StrSeprate,@SourceSql)
 end
 if @SourceSql <> ''
 insert @temp values(@SourceSql)
 return
end

-----测试
GO
Select * From dbo.split('asd,f,gh,jk,l',',')

--SQL 递归
Create function [dbo].[split]
(
@SourceSql varchar(max),
@StrSeprate varchar(10)
)
returns @temp table(line varchar(max))
as
begin
	;with roy as 
	(
	select COl2=cast(substring(@SourceSql+@StrSeprate,1,charindex(@StrSeprate,@SourceSql+@StrSeprate)-1) as nvarchar(max)),
	Split=cast(substring(@SourceSql+@StrSeprate,charindex(@StrSeprate,@SourceSql+@StrSeprate)+1,len(@SourceSql+@StrSeprate)-charindex(@StrSeprate,@SourceSql+@StrSeprate)) as varchar(max))
	union all
	select COl2=cast(cast(substring(Split,1,charindex(@StrSeprate,Split)-1) as nvarchar(100)) as nvarchar(max)),
	Split= cast(substring(Split,charindex(@StrSeprate,Split)+1,len(Split)-charindex(@StrSeprate,Split)) as varchar(max))
	from Roy where charindex(@StrSeprate,Split)>1
	)
	Insert into @temp(line)select COl2 from roy option (MAXRECURSION 0)
 return
end