如何查询XML列在SQL Server 2008中

I am using SQL Server 2008

我正在使用SQL Server 2008

I have a table with xml data looks like:

我有一个xml数据表如下:

ID           xml_col  
1            <Attribute id="7">1.0</Attribute><Attribute id="8">AAA</Attribute>  
2            <Attribute id="7">2.0</Attribute><Attribute id="8">BBB</Attribute>  
3            <Attribute id="7">3.0</Attribute><Attribute id="8">AAA</Attribute>  
4            <Attribute id="7">1.0</Attribute><Attribute id="8">BBB</Attribute>  
5            <Attribute id="7">1.0</Attribute><Attribute id="8">AAA</Attribute>  
6            <Attribute id="7">7.0</Attribute><Attribute id="8">CCC</Attribute>

I want to get those records that

我想得到那些记录

'when attribute=17 then value =1'+ 'when attribute=8 then value='AAA''

How can i create the query and how to build xml indexes?

如何创建查询以及如何构建xml索引?

Thank you very much.

非常感谢你。

1 个解决方案

#1

To select all rows which have the criteria you mentioned, try this select statement:

要选择具有您提到的条件的所有行,请尝试以下select语句:

SELECT * 
FROM dbo.YourXmlTable
WHERE
YourXmlTable.xml_col.value('(//Attribute[@id=7])[1]', 'decimal') = 1.0
AND 
    YourXmlTable.xml_col.value('(//Attribute[@id=8])[1]', 'varchar(10)') = 'AAA'

For XML indices, read up on Books Online how to create them and how to use them.

对于XML索引,请阅读联机丛书如何创建它们以及如何使用它们。

#1