SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

Create FUNCTION [dbo].[F_Split]
 (
     @SplitString nvarchar(max),  --源字串
     @Separator nvarchar(10)=' '  --分隔符號，預設為空格
 )
 RETURNS @SplitStringsTable TABLE  --輸出的資料表
 (
     [id] int identity(1,1),
     [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
GO

源文：https://www.cnblogs.com/xx2oo8/p/7000728.html

https://www.cnblogs.com/Wxinchun/p/9806687.html