如何在sql server中选择行数据作为单列答案

【问题标题】：how to select rows data as single column in sql server如何在sql server中选择行数据作为单列
【发布时间】：2014-10-08 04:56:18
【问题描述】：

我在 SQL Server 中有一个表：

T_Id    Supplimentary_keywords
-------------------------------------------------------------------------------------------
1       Animal, Animals, 1, One, Single,live,living Organism
2       Animals, Animal, Two, 2,live,living Organism
3       Animals, Animal, Three, 3,live,living Organism
4       Animals, Animal, Four, 4,live,living Organism
5       Animals, Animal, 5, Five,live,living Organism
6       Group Of Animals, Small Group, Group, Groups, Small Size Group
7       Group Of Animals, Animals, Animal, Group, Groups, Grouping,live,living Organism
8       Group Of Animals, Animals, Animal, Group, Groups, Grouping,large Group,live 
9       Head, Heads
10      Neck, Necks

现在我想从Supplimentary_keywords 和distinct 中选择数据，如下所示：

Supplimentary_keywords
----------------------
Animal
Animals
1
One
Single
live
living Organism
Two
2
live
Three
3
.......

我正在使用以下代码

SELECT DISTINCT
    Split.a.value('.', 'VARCHAR(100)') Kwd
FROM   
    (SELECT 
         T_Id, 
         CAST('<M>' + Replace(Supplimentary_keywords, ',', '</M><M>')
                    + '</M>' AS XML) AS Data from KWD_Theaurus_tbl) AS A
     CROSS APPLY 
         data.nodes ('/M') AS Split(a)

并得到错误

消息 9421，第 16 级，状态 1，第 1 行
XML解析：第1行，第11个字符，非法名称字符

如果我做错了，请帮助我如何实现或纠正我。

【问题讨论】：

为了能够纠正您，您必须先向我们展示您的代码！
请不要将代码示例或示例数据放入 cmets - 因为您无法对其进行格式化，所以阅读它非常困难....而是：更新您的问题，编辑它以提供附加信息！谢谢。
@marc_s 对不起！我只是想向你展示我的代码，这就是为什么

标签： sql sql-server tsql

【解决方案1】：

create table #temp (id int,suppl varchar(1000))
insert into #temp
select 1 ,      'Animal, Animals, 1, One, Single,live,living Organism'
union all
select 2  ,     'Animals, Animal, Two, 2,live,living Organism'
union all
select 3  ,     'Animals, Animal, Three, 3,live,living Organism'
union all
select 4  ,     'Animals, Animal, Four, 4,live,living Organism'
union all
select 5  ,     'Animals, Animal, 5, Five,live,living Organism'
union all
select 6  ,     'Group Of Animals, Small Group, Group, Groups, Small Size Group'
union all
select 7  ,     'Group Of Animals, Animals, Animal, Group, Groups, Grouping,live,living Organism'
union all
select 8  ,     'Group Of Animals, Animals, Animal, Group, Groups, Grouping,large Group,live'
union all
select 9  ,     'Head, Heads'
union all
select 10  ,    'Neck, Necks'



SELECT distinct Split.a.value('.', 'VARCHAR(100)') data
           FROM   (select id,Cast ('<M>'
                                + Replace(suppl, ',', '</M><M>')
                                + '</M>' AS XML) AS Data from #temp) AS A
                  CROSS APPLY Data.nodes ('/M') AS Split(a)

【讨论】：

Supplimentary_keywords 列数据中是否有特殊字符
无效的特殊字符及其在 xml 中的替代品 & - &amp - &gt " - &quot ' - '
是的，有些关键字就像Black & White, Black&white, B & W,b&w, B\w, Bw, Black-and-white
@pradeep：您的查询是否以与插入的顺序相同的顺序返回，如果需要以相同的顺序，我们将需要使用我正在摸不着头脑的联合！

【解决方案2】：

试试这个..

SELECT distinct Split.a.value('.', 'VARCHAR(100)') data
           FROM   (select id,Cast ('<M>'
                                + replace(Replace(suppl, ',', '</M><M>'),'&','&amp;')
                                + '</M>' AS XML) AS Data from #temp) AS A
                  CROSS APPLY Data.nodes ('/M') AS Split(a)

如果您有任何其他 spl 字符，请相应地替换它。

无效的特殊字符及其在 xml 中的替代品

& - &amp;
< - &lt;
> - &gt;
" - &quot;
' - &#39;

【讨论】：

【解决方案3】：

   SELECT DISTINCT Split.a.value('.', 'VARCHAR(100)') AS Supplimentary_keywords
     FROM   (SELECT id,
           Cast ('<M>'
                 + Replace(Supplimentary_keywords, ',', '</M><M>')
                 + '</M>' AS XML) AS Supplimentary_keywords
    FROM   #temp) AS A
   CROSS APPLY Supplimentary_keywords.nodes ('/M') AS Split(a);

【讨论】：