SqlServer自定义Split函数

 1 CREATE function [dbo].[Split]
 2 (
 3     @SourceString nvarchar(max),
 4     @Separator nvarchar(max)=','
 5 )
 6 returns @temp table(split nvarchar(128))
 7 --实现split功能
 8 as
 9 begin
10 
11 declare @i int
12 set @SourceString=rtrim(ltrim(@SourceString))
13 set @i=charindex(@Separator,@SourceString)
14 while @i>=1
15     begin
16         insert @temp values(left(@SourceString,@i-1))
17         set @SourceString=substring(@SourceString,@i+1,len(@SourceString)-@i)
18         set @i=charindex(@Separator,@SourceString)
19     end
20 
21 if @SourceString<>''
22     begin
23         insert @temp values(@SourceString)
24     end
25 return
26 
27 end