[sql server] 2005的xml查询例子

一、

--建立测试环境
IF OBJECT_ID('PRPXMAINCREDITINFO') IS NOT NULL DROP TABLE PRPXMAINCREDITINFO
GO
CREATE TABLE PRPXMAINCREDITINFO
(
SUBJECT varchar(10),
chinesesubject varchar(20)
)
GO
INSERT PRPXMAINCREDITINFO
SELECT '公司1','样本公司1' union all
SELECT '公司2','样本公司2'
go
IF OBJECT_ID('PRPXTRADE') IS NOT NULL DROP TABLE PRPXTRADE
GO
CREATE TABLE PRPXTRADE
(
TRADECODE varchar(10),
TRADENAME varchar(20)
)
GO
INSERT PRPXTRADE
SELECT '代号1','代号名字1'
--查询
select
(select SUBJECT as "SUBJECT",
chinesesubject as "chinesesubject"
from PRPXMAINCREDITINFO for xml path(''),type
) as "PRPXMAINCREDITINFO",
(select TRADECODE as "TRADECODE",
TRADENAME as "TRADENAME"
from PRPXTRADE for xml path(''),type
) as "PRPXTRADE"
FOR XML PATH(''),type

--结果
/*
<PRPXMAINCREDITINFO>
<SUBJECT>公司1</SUBJECT><chinesesubject>样本公司1</chinesesubject>
<SUBJECT>公司2</SUBJECT><chinesesubject>样本公司2</chinesesubject>
</PRPXMAINCREDITINFO>
<PRPXTRADE>
<TRADECODE>代号1</TRADECODE>
<TRADENAME>代号名字1</TRADENAME>
</PRPXTRADE>

*/

二、

if OBJECT_ID('tempdb..#a') is not null
drop table #a;
go
create table #a (id int,Employee xml);
go
insert into #a
select 1,'<NewDataSet>
<xs:schema xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata" id="NewDataSet">
<xs:element name="NewDataSet" msdata:IsDataSet="true" msdata:MainDataTable="Table" msdata:UseCurrentLocale="true">
<xs:complexType>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element name="Table">
<xs:complexType>
<xs:sequence>
<xs:element name="ZoneNo" type="xs:string" minOccurs="0" />
<xs:element name="UserPosition" type="xs:string" minOccurs="0" />
<xs:element name="PositionLevel" type="xs:string" minOccurs="0" />
<xs:element name="RoleType" type="xs:string" minOccurs="0" />
<xs:element name="WorkState" type="xs:string" minOccurs="0" />
<xs:element name="RedeployTime" type="xs:dateTime" minOccurs="0" />
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:choice>
</xs:complexType>
</xs:element>
</xs:schema>
<Table>
<ID>1</ID>
<ZoneNo>ZY0304</ZoneNo>
<UserPosition>置业顾问</UserPosition>
<PositionLevel>初级顾问</PositionLevel>
<RoleType>0009</RoleType>
<WorkState>在职</WorkState>
<RedeployTime>2007-07-20 9:26:00</RedeployTime>
</Table>
<Table>
<ID>2</ID>
<ZoneNo>ZY0302</ZoneNo>
<UserPosition>置业顾问</UserPosition>
<PositionLevel>初级顾问</PositionLevel>
<RoleType>0010</RoleType>
<WorkState>在职</WorkState>
<RedeployTime>2008-09-20 9:26:00</RedeployTime>
</Table>
</NewDataSet>'
go

declare @s varchar(max)
select @s=isnull(@s+';'+char(10),'')+'update Table2 set ZoneNo='''+ZoneNo+''',UserPosition='''+UserPosition+''',PositionLevel='''+PositionLevel+
''',RoleType='''+RoleType+''' where RedeployTime>'''+RedeployTime+''''
from #a a cross apply
(select t.x.value('ID[1]','int') bid ,
t.x.value('ZoneNo[1]','varchar(10)') ZoneNo,
t.x.value('UserPosition[1]','varchar(10)') UserPosition,
t.x.value('PositionLevel[1]','varchar(10)') PositionLevel,
t.x.value('RoleType[1]','varchar(10)') RoleType,
t.x.value('WorkState[1]','varchar(10)') WorkState,
t.x.value('RedeployTime[1]','varchar(30)') RedeployTime
from a.Employee.nodes('/NewDataSet/Table') t(x)) b

print @s

------------
update Table2 set ZoneNo='ZY0304',UserPosition='置业顾问',PositionLevel='初级顾问',RoleType='0009' where RedeployTime>'2007-07-20 9:26:00';
update Table2 set ZoneNo='ZY0302',UserPosition='置业顾问',PositionLevel='初级顾问',RoleType='0010' where RedeployTime>'2008-09-20 9:26:00'