Sql 将包含XML的VARCHAR列转换为表
我正在使用VMware vCenter 5,希望创建已创建的DRS规则的快速报告。以下是数据摘录:Sql 将包含XML的VARCHAR列转换为表,sql,sql-server,sql-server-2008,Sql,Sql Server,Sql Server 2008,我正在使用VMware vCenter 5,希望创建已创建的DRS规则的快速报告。以下是数据摘录: <obj xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="urn:vim25" versionId="5.0" xsi:type="ArrayOfClusterRuleInfo"> <ClusterRuleInfo
<obj xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="urn:vim25" versionId="5.0" xsi:type="ArrayOfClusterRuleInfo">
<ClusterRuleInfo xsi:type="ClusterAffinityRuleSpec">
<key>1</key>
<enabled>true</enabled>
<name>SQL Servers</name>
<vm type="VirtualMachine" xsi:type="ManagedObjectReference">vm-100</vm>
<vm type="VirtualMachine" xsi:type="ManagedObjectReference">vm-200</vm>
<vm type="VirtualMachine" xsi:type="ManagedObjectReference">vm-300</vm>
</ClusterRuleInfo>
<ClusterRuleInfo xsi:type="ClusterAntiAffinityRuleSpec">
<key>2</key>
<enabled>true</enabled>
<name>Oracle DBs</name>
<vm type="VirtualMachine" xsi:type="ManagedObjectReference">vm-1000</vm>
<vm type="VirtualMachine" xsi:type="ManagedObjectReference">vm-2000</vm>
</ClusterRuleInfo>
</obj>
它不返回任何数据。我发现,如果我删除和行,它的工作,但我不知道为什么。我认为这是因为SQLServer不理解XML模式(或者类似的东西——我不是XML专家)
最后,我希望看到这样一张表:
Name VM
----------- ----
SQL Servers 100
SQL Servers 200
SQL Servers 300
Oracle DBs 1000
Oracle DBs 2000
您的XML使用名称空间,因此需要
WITH XMLNAMESPACES
子句:
declare @data xml;
set @data = '
<obj xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="urn:vim25" versionId="5.0" xsi:type="ArrayOfClusterRuleInfo">
<ClusterRuleInfo xsi:type="ClusterAffinityRuleSpec">
<key>1</key>
<enabled>true</enabled>
<name>SQL Servers</name>
<vm type="VirtualMachine" xsi:type="ManagedObjectReference">vm-100</vm>
<vm type="VirtualMachine" xsi:type="ManagedObjectReference">vm-200</vm>
<vm type="VirtualMachine" xsi:type="ManagedObjectReference">vm-300</vm>
</ClusterRuleInfo>
<ClusterRuleInfo xsi:type="ClusterAntiAffinityRuleSpec">
<key>2</key>
<enabled>true</enabled>
<name>Oracle DBs</name>
<vm type="VirtualMachine" xsi:type="ManagedObjectReference">vm-1000</vm>
<vm type="VirtualMachine" xsi:type="ManagedObjectReference">vm-2000</vm>
</ClusterRuleInfo>
</obj>';
WITH XMLNAMESPACES('urn:vim25' AS ns)
SELECT
ref.value('../ns:name[1]','nvarchar(256)') AS Name,
STUFF(ref.value('.','nvarchar(256)'),1,3,'') AS VM
FROM @data.nodes('/ns:obj/ns:ClusterRuleInfo/ns:vm') data( ref );
declare@data-xml;
set@data='1〕
1.
真的
数据库应用系统设计
vm-100
vm-200
vm-300
2.
真的
甲骨文数据库
vm-1000
vm-2000
';
使用XMLNAMESPACES('urn:vim25'作为ns)
挑选
将ref.value('../ns:name[1]','nvarchar(256')作为名称,
填充(参考值('.',nvarchar(256'),1,3'')作为VM
来自@data.nodes('/ns:obj/ns:ClusterRuleInfo/ns:vm')数据(ref);
谢谢你,彼得。这很有效。我不确定我会不会明白这一点!:)
declare @data xml;
set @data = '
<obj xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="urn:vim25" versionId="5.0" xsi:type="ArrayOfClusterRuleInfo">
<ClusterRuleInfo xsi:type="ClusterAffinityRuleSpec">
<key>1</key>
<enabled>true</enabled>
<name>SQL Servers</name>
<vm type="VirtualMachine" xsi:type="ManagedObjectReference">vm-100</vm>
<vm type="VirtualMachine" xsi:type="ManagedObjectReference">vm-200</vm>
<vm type="VirtualMachine" xsi:type="ManagedObjectReference">vm-300</vm>
</ClusterRuleInfo>
<ClusterRuleInfo xsi:type="ClusterAntiAffinityRuleSpec">
<key>2</key>
<enabled>true</enabled>
<name>Oracle DBs</name>
<vm type="VirtualMachine" xsi:type="ManagedObjectReference">vm-1000</vm>
<vm type="VirtualMachine" xsi:type="ManagedObjectReference">vm-2000</vm>
</ClusterRuleInfo>
</obj>';
WITH XMLNAMESPACES('urn:vim25' AS ns)
SELECT
ref.value('../ns:name[1]','nvarchar(256)') AS Name,
STUFF(ref.value('.','nvarchar(256)'),1,3,'') AS VM
FROM @data.nodes('/ns:obj/ns:ClusterRuleInfo/ns:vm') data( ref );