SQL server字符分割

USE [vanke_develop]
GO
/****** Object:  UserDefinedFunction [dbo].[func_Split]    Script Date: 2019/5/22 15:20:07 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER FUNCTION [dbo].[func_Split]
 (
     @SplitString nvarchar(max),  --源字符串
     @Separator nvarchar(10)=','  --分隔符號，默認為逗號
 )
 RETURNS @SplitStringsTable TABLE  --輸出的數據表
 (
     [value] nvarchar(max)
 )
 AS
 BEGIN
     DECLARE @CurrentIndex int;
     DECLARE @NextIndex int;
     DECLARE @ReturnText nvarchar(max);

     SELECT @CurrentIndex=1;
     WHILE(@CurrentIndex<=len(@SplitString))
         BEGIN
             SELECT @NextIndex=charindex(@Separator,@SplitString,@CurrentIndex);
             IF(@NextIndex=0 OR @NextIndex IS NULL)
                 SELECT @NextIndex=len(@SplitString)+1;
                 SELECT @ReturnText=substring(@SplitString,@CurrentIndex,@NextIndex-@CurrentIndex);
                 INSERT INTO @SplitStringsTable([value]) VALUES(@ReturnText);
                 SELECT @CurrentIndex=@NextIndex+1;
         END
     RETURN;

 END