处理sql中的xml /将xml转换为varchar

Question

--------+-------------------------------------------------------
int     |xml
--------+-------------------------------------------------------
2       |<items>
        |    <item>
        |         <description>item 21 </description>
        |    </item>
        |    <item>
        |      <description>item 22</description>
        |    </item>
        |</items>
--------+-------------------------------------------------------
3       |<items>
        |    <item>
        |         <description>item 31 </description>
        |    </item>
        |</items>
--------+-------------------------------------------------------
4       |<items>
        |    <item>
        |         <description>item 31 </description>
        |    </item>
        |    <item>
        |      <description>item 32</description>
        |    </item>
        |    <item>
        |      <description>item 33</description>
        |    </item>
        |</items>
--------+-------------------------------------------------------

我有一个表格，如上面的结构和类型， 我必须将它转换为结构和类型如下

--------+-------------------------------------------------------
int     |varhcar
--------+-------------------------------------------------------
2       |     item 21 
--------+-------------------------------------------------------  
2       |     item 22  
--------+-------------------------------------------------------
3       |     item 31   
--------+-------------------------------------------------------
4       |     item 41  
--------+-------------------------------------------------------
4       |     item 42   
--------+-------------------------------------------------------
4       |     item 43
--------+-------------------------------------------------------

任何帮助表示赞赏PLZ

Answer 1

试试这个：

SELECT
    ID, 
    Item.value('(description)[1]', 'varchar(50)') AS 'DescText'
FROM 
    dbo.YourTable
CROSS APPLY 
    xml.nodes('/items/item') AS Node(Item)

那应该从表中选择ID（或int），并从XML中获取<description>个节点的所有内容。