sqlserver 拼接字符串分割

CREATE  FUNCTION [dbo].[fnQuerySplit]
    (
      @string VARCHAR(MAX) ,--待分割字符串
      @separator VARCHAR(255)--分割符
    )
RETURNS @array TABLE ( item VARCHAR(255) )
AS
    BEGIN
        DECLARE @begin INT ,
            @end INT ,
            @item VARCHAR(255);
        SET @begin = 1;
        SET @end = CHARINDEX(@separator, @string, @begin);
        WHILE ( @end <> 0 )
            BEGIN
                SET @item = SUBSTRING(@string, @begin, @end - @begin);
                INSERT  INTO @array
                        ( item )
                VALUES  ( @item );
                SET @begin = @end + 1;
                SET @end = CHARINDEX(@separator, @string, @begin);
            END;
        SET @item = SUBSTRING(@string, @begin, LEN(@string) + 1 - @begin);
        IF ( LEN(@item) > 0 )
            INSERT  INTO @array
                    ( item
                    )
            VALUES  ( SUBSTRING(@string, @begin, LEN(@string) + 1 - @begin)
                    );
        RETURN;
    END;

CREATE  FUNCTION [dbo].[Fun_String2Table]
    (
      @str NVARCHAR(MAX) ,
      @split NVARCHAR(10)
    )
RETURNS @table TABLE ( [item] NVARCHAR(MAX) )
AS
    BEGIN
        IF LEN(@split) = 0
            BEGIN
                SET @split = N',';
            END;
  
        DECLARE @xml XML;
        SET @xml = CONVERT(XML, '<x><![CDATA['
            + REPLACE(CONVERT(VARCHAR(MAX), @str), @split,
                      ']]></x><x><![CDATA[') + ']]></x>');
  
        INSERT  INTO @table
                SELECT  item
                FROM    ( SELECT    c.value('text()[1]', 'nvarchar(4000)') [item]
                          FROM      @xml.nodes('/x') t ( c )
                        ) t
                WHERE   item IS NOT NULL;
  
        RETURN;
    END;

 

 

 

fnQuerySplit：

 

 

 

Fun_String2Table

 

 

 

 

来源：https://www.cnblogs.com/myloveblogs/p/11766261.html