SQL一字段内的字符串按照特定字符串转化为多行显示

declare @table1 table
    (
        ID int ,
        Col1 nvarchar(50) ,
        Col2 nvarchar(50)
    );

insert into @table1 values ( 1, ‘a,b,c‘, ‘诶，必，塞，地，伊‘ );
insert into @table1 values ( 2, ‘w‘, N‘三四，不知道咧‘ );


--方式一
select a.ID, a.Col1, a.Col2,  v1, v2
from   (   select ID, Col1, Col2, convert(xml, ‘<n>‘ + replace(replace(Col1, ‘，‘, ‘,‘), ‘,‘, ‘</n><n>‘) + ‘</n>‘) as xmlval1 ,
                                  convert(xml, ‘<n>‘ + replace(replace(Col2, ‘，‘, ‘,‘), ‘,‘, ‘</n><n>‘) + ‘</n>‘) as xmlval2
           from   @table1 ) a
       cross apply (   select k.n.value(‘.‘, ‘nvarchar(80)‘) v1
                       from   a.xmlval1.nodes(‘n‘) k(n) ) bs
       cross apply (   select k.n.value(‘.‘, ‘nvarchar(80)‘) v2
                       from   a.xmlval2.nodes(‘n‘) k(n) ) ns;

--方式二
select ID, t.Col1,t.Col2,  v1, v2
from   @table1 as t
       cross apply ( values (convert(xml, ‘<n>‘ + replace(replace(Col1, ‘，‘, ‘,‘), ‘,‘, ‘</n><n>‘)+ ‘</n>‘), 
                             convert(xml, ‘<n>‘ + replace(replace(Col2, ‘，‘, ‘,‘), ‘,‘, ‘</n><n>‘)+ ‘</n>‘))
                   ) a (xmlval1 , xmlval2 )
       cross apply (   select k.n.value(‘.‘, ‘varchar(80)‘) as v1
                       from   a.xmlval1.nodes(‘n‘) k(n)) bs
       cross apply (   select k.n.value(‘.‘, ‘varchar(80)‘) as v2
                       from   a.xmlval2.nodes(‘n‘) k(n) ) ns;

;with CTE
as ( select *, row_number() over ( partition by id order by ( select 1 )) as SEQ from @table1 )

select   A.ID, substring(Col1, B.number, charindex(‘,‘, Col1 + ‘,‘, B.number) - B.number) as single_age
from     CTE A
         inner join master..spt_values B on charindex(‘,‘, ‘,‘ + Col1, B.number) = B.number
where    B.type = ‘P‘
order by id, SEQ, B.number;

--1. 创建fn_Split函数. ( 切分字符串， 返回一个列名为id的表 )  
IF EXISTS(
       SELECT *
       FROM   dbo.sysobjects
       WHERE  id = OBJECT_ID(‘fn_Split‘)
              AND (TYPE = ‘FN‘ OR TYPE = ‘TF‘ OR TYPE = ‘IF‘)
   )
    DROP FUNCTION fn_Split  
GO  
   
CREATE FUNCTION [dbo].[fn_Split]
(
    @str           VARCHAR(MAX),
    @separator     VARCHAR(10)
)
RETURNS TABLE
AS
    RETURN 
    (
        --Example:  SELECT id FROM fn_Split(‘a,b,d,c‘,‘,‘)  
        SELECT B.id
        FROM   (
                   (
                          --A　的作用只是生成 ‘<v>a</v><v>b</v><v>d</v><v>c</v>‘ 的XML格式的数据, 提供数据源 
                       SELECT [value] = CONVERT(XML, ‘<v>‘ + REPLACE(@str, @separator, ‘</v><v>‘) + ‘</v>‘)
                   ) A 
                   OUTER APPLY
                   (
                          --B 的作用是将A中的 XML 数据的值枚举出来转换成行
                       SELECT id = N.v.value(‘.‘, ‘varchar(100)‘) FROM   A.[value].nodes(‘/v‘) N(v)
                   ) B
               )
    )
GO

DECLARE @t TABLE (id INT,age NVARCHAR(MAX))
INSERT INTO @t VALUES(1,‘23|24|25|26|29‘)
INSERT INTO @t VALUES(1,‘33|aa|bb|cc|ss‘)
INSERT INTO @t VALUES(2,‘35|BB|CC|YY|RR‘)
 
SELECT a.id,b.id AS item 
FROM @t a CROSS APPLY dbo.fn_Split(a.age,‘|‘) AS b