我的问题是我不知道如何使用OpenXML提取XML标记元素。任何澄清都会很棒。
之前我使用过xml.node，但现在我正在转换到OpenXML
我的XML文档可以是found here
我的存储过程：
ALTER procedure [dbo].[WEEKXml]
(@xmlstr ntext)
as
begin
declare @hDoc int
exec sp_xml_preparedocument @hDoc OUTPUT,@xmlstr
insert into tbl_weekquake
select xml.time,xml.longitude,xml.latitude,xml.depth,xml.mag,xml.type,xml.description,xml.text
from OPENXML(@hDoc,'/q:quakeml/eventParameters/event',2)
with([time] varchar(300) 'times',
latitude numeric(18,6),
longitude numeric(18,6) ,
depth varchar(50),
mag varchar(50)'magnitude',
type varchar(50) 'mag_type',
description varchar(max) 'placer',
[text] varchar(50)'type')xml
exec sp_xml_removedocument @hDoc
END
答案 0 :(得分：0)
您的一个问题是OPENXML不能很好地处理“默认命名空间”。 （除了没有人建议再使用它的事实）。
以下是如何强制使用openxml的默认命名空间。
declare @xmlDoc nvarchar(4000)
SET @xmlDoc='
<q:quakeml xmlns="http://quakeml.org/xmlns/bed/1.2" xmlns:catalog="http://anss.org/xmlns/catalog/0.1" xmlns:q="http://quakeml.org/xmlns/quakeml/1.2">
<eventParameters publicID="quakeml:earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_hour.quakeml">
<event catalog:datasource="nc" catalog:eventsource="nc" catalog:eventid="72431490" publicID="quakeml:earthquake.usgs.gov/earthquakes/feed/v1.0/detail/nc72431490.quakeml"><description><type>earthquake name</type><text>7km W of Cobb, California</text></description><origin catalog:datasource="nc" catalog:dataid="nc72431490" catalog:eventsource="nc" catalog:eventid="72431490" publicID="quakeml:earthquake.usgs.gov/realtime/product/origin/nc72431490/nc/1429535409370/product.xml"><time><value>2015-04-20T13:08:32.490Z</value></time><longitude><value>-122.810997</value></longitude><latitude><value>38.8321648</value></latitude><depth><value>2340</value><uncertainty>940</uncertainty></depth><originUncertainty><horizontalUncertainty>380</horizontalUncertainty><preferredDescription>horizontal uncertainty</preferredDescription></originUncertainty><quality><usedPhaseCount>9</usedPhaseCount><usedStationCount>9</usedStationCount><standardError>0.02</standardError><azimuthalGap>114</azimuthalGap><minimumDistance>0.008787</minimumDistance></quality><evaluationMode>automatic</evaluationMode><creationInfo><agencyID>NC</agencyID><creationTime>2015-04-20T13:10:09.370Z</creationTime><version>0</version></creationInfo></origin><magnitude catalog:datasource="nc" catalog:dataid="nc72431490" catalog:eventsource="nc" catalog:eventid="72431490" publicID="quakeml:earthquake.usgs.gov/realtime/product/origin/nc72431490/nc/1429535409370/product.xml#magnitude"><mag><value>0.29</value></mag><type>md</type><stationCount>1</stationCount><originID>quakeml:earthquake.usgs.gov/realtime/product/origin/nc72431490/nc/1429535409370/product.xml</originID><evaluationMode>automatic</evaluationMode><creationInfo><agencyID>NC</agencyID><creationTime>2015-04-20T13:10:09.370Z</creationTime></creationInfo></magnitude><preferredOriginID>quakeml:earthquake.usgs.gov/realtime/product/origin/nc72431490/nc/1429535409370/product.xml</preferredOriginID><preferredMagnitudeID>quakeml:earthquake.usgs.gov/realtime/product/origin/nc72431490/nc/1429535409370/product.xml#magnitude</preferredMagnitudeID><type>earthquake</type><creationInfo><agencyID>nc</agencyID><creationTime>2015-04-20T13:17:04.229Z</creationTime><version>0</version></creationInfo></event>
<creationInfo><creationTime>2015-04-20T13:31:33.000Z</creationTime></creationInfo>
</eventParameters></q:quakeml>
'
declare @i int
exec sp_xml_preparedocument @i output, @xmlDoc,'<root xmlns:HaveToUsePlaceholderForDefaultAlias="http://quakeml.org/xmlns/bed/1.2" xmlns:q="http://quakeml.org/xmlns/quakeml/1.2" />'
SELECT * FROM OPENXML(@i, '/q:quakeml/HaveToUsePlaceholderForDefaultAlias:eventParameters/HaveToUsePlaceholderForDefaultAlias:event',2)
WITH (
MyDescriptionType nvarchar(200) 'HaveToUsePlaceholderForDefaultAlias:description[1]/HaveToUsePlaceholderForDefaultAlias:type[1]/.'
, MyMagValue nvarchar(200) 'HaveToUsePlaceholderForDefaultAlias:magnitude[1]/HaveToUsePlaceholderForDefaultAlias:mag[1]/HaveToUsePlaceholderForDefaultAlias:value[1]/.'
, MagType nvarchar(200) 'HaveToUsePlaceholderForDefaultAlias:magnitude[1]/HaveToUsePlaceholderForDefaultAlias:type[1]/.'
)
exec sp_xml_removedocument @i
你必须在整个地方用“HaveToUsePlaceholderForDefaultAlias：”谜语代码。
我建议不要使用OPENXML。
这是“节点”版本.......使用默认命名空间更清晰。
declare @xmldoc xml
select @xmldoc =
'
<q:quakeml xmlns="http://quakeml.org/xmlns/bed/1.2" xmlns:catalog="http://anss.org/xmlns/catalog/0.1" xmlns:q="http://quakeml.org/xmlns/quakeml/1.2">
<eventParameters publicID="quakeml:earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_hour.quakeml">
<event catalog:datasource="nc" catalog:eventsource="nc" catalog:eventid="72431490" publicID="quakeml:earthquake.usgs.gov/earthquakes/feed/v1.0/detail/nc72431490.quakeml">
<description>
<type>earthquake name</type>
<text>7km W of Cobb, California</text>
</description>
<origin catalog:datasource="nc" catalog:dataid="nc72431490" catalog:eventsource="nc" catalog:eventid="72431490" publicID="quakeml:earthquake.usgs.gov/realtime/product/origin/nc72431490/nc/1429535409370/product.xml">
<time>
<value>2015-04-20T13:08:32.490Z</value>
</time>
<longitude>
<value>-122.810997</value>
</longitude>
<latitude>
<value>38.8321648</value>
</latitude>
<depth>
<value>2340</value>
<uncertainty>940</uncertainty>
</depth>
<originUncertainty>
<horizontalUncertainty>380</horizontalUncertainty>
<preferredDescription>horizontal uncertainty</preferredDescription>
</originUncertainty>
<quality>
<usedPhaseCount>9</usedPhaseCount>
<usedStationCount>9</usedStationCount>
<standardError>0.02</standardError>
<azimuthalGap>114</azimuthalGap>
<minimumDistance>0.008787</minimumDistance>
</quality>
<evaluationMode>automatic</evaluationMode>
<creationInfo>
<agencyID>NC</agencyID>
<creationTime>2015-04-20T13:10:09.370Z</creationTime>
<version>0</version>
</creationInfo>
</origin>
<magnitude catalog:datasource="nc" catalog:dataid="nc72431490" catalog:eventsource="nc" catalog:eventid="72431490" publicID="quakeml:earthquake.usgs.gov/realtime/product/origin/nc72431490/nc/1429535409370/product.xml#magnitude">
<mag>
<value>0.29</value>
</mag>
<type>md</type>
<stationCount>1</stationCount>
<originID>quakeml:earthquake.usgs.gov/realtime/product/origin/nc72431490/nc/1429535409370/product.xml</originID>
<evaluationMode>automatic</evaluationMode>
<creationInfo>
<agencyID>NC</agencyID>
<creationTime>2015-04-20T13:10:09.370Z</creationTime>
</creationInfo>
</magnitude>
<preferredOriginID>quakeml:earthquake.usgs.gov/realtime/product/origin/nc72431490/nc/1429535409370/product.xml</preferredOriginID>
<preferredMagnitudeID>quakeml:earthquake.usgs.gov/realtime/product/origin/nc72431490/nc/1429535409370/product.xml#magnitude</preferredMagnitudeID>
<type>earthquake</type>
<creationInfo>
<agencyID>nc</agencyID>
<creationTime>2015-04-20T13:17:04.229Z</creationTime>
<version>0</version>
</creationInfo>
</event>
<creationInfo>
<creationTime>2015-04-20T13:31:33.000Z</creationTime>
</creationInfo>
</eventParameters>
</q:quakeml>
'
;WITH XMLNAMESPACES ( 'http://quakeml.org/xmlns/quakeml/1.2' AS q, DEFAULT 'http://quakeml.org/xmlns/bed/1.2' )
SELECT
MyDescriptionType = Y.i.value('./description[1]/type[1]/.', 'varchar(64)')
, MyMagValue = Y.i.value('./magnitude[1]/mag[1]/value[1]/.', 'varchar(64)')
, MagType = Y.i.value('./magnitude[1]/type[1]/.', 'varchar(64)')
FROM
@xmldoc.nodes('/q:quakeml/eventParameters/event') AS Y(i)
APPEND：
您可能希望将信息放在#temp表中，然后将#temp表中的数据插入“real”表。
IF OBJECT_ID('tempdb..#Holder') IS NOT NULL
begin
drop table #Holder
end
CREATE TABLE #Holder ( ID int identity (1000,1) , MyDescription varchar(64) , Longitude numeric(18,6) , Magnitude varchar(64) , MagType varchar(64) )
declare @xmldoc xml
select @xmldoc =
'
<q:quakeml xmlns="http://quakeml.org/xmlns/bed/1.2" xmlns:catalog="http://anss.org/xmlns/catalog/0.1" xmlns:q="http://quakeml.org/xmlns/quakeml/1.2">
<eventParameters publicID="quakeml:earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_hour.quakeml">
<event catalog:datasource="nc" catalog:eventsource="nc" catalog:eventid="72431490" publicID="quakeml:earthquake.usgs.gov/earthquakes/feed/v1.0/detail/nc72431490.quakeml">
<description>
<type>earthquake name</type>
<text>7km W of Cobb, California</text>
</description>
<origin catalog:datasource="nc" catalog:dataid="nc72431490" catalog:eventsource="nc" catalog:eventid="72431490" publicID="quakeml:earthquake.usgs.gov/realtime/product/origin/nc72431490/nc/1429535409370/product.xml">
<time>
<value>2015-04-20T13:08:32.490Z</value>
</time>
<longitude>
<value>-122.810997</value>
</longitude>
<latitude>
<value>38.8321648</value>
</latitude>
<depth>
<value>2340</value>
<uncertainty>940</uncertainty>
</depth>
<originUncertainty>
<horizontalUncertainty>380</horizontalUncertainty>
<preferredDescription>horizontal uncertainty</preferredDescription>
</originUncertainty>
<quality>
<usedPhaseCount>9</usedPhaseCount>
<usedStationCount>9</usedStationCount>
<standardError>0.02</standardError>
<azimuthalGap>114</azimuthalGap>
<minimumDistance>0.008787</minimumDistance>
</quality>
<evaluationMode>automatic</evaluationMode>
<creationInfo>
<agencyID>NC</agencyID>
<creationTime>2015-04-20T13:10:09.370Z</creationTime>
<version>0</version>
</creationInfo>
</origin>
<magnitude catalog:datasource="nc" catalog:dataid="nc72431490" catalog:eventsource="nc" catalog:eventid="72431490" publicID="quakeml:earthquake.usgs.gov/realtime/product/origin/nc72431490/nc/1429535409370/product.xml#magnitude">
<mag>
<value>0.29</value>
</mag>
<type>md</type>
<stationCount>1</stationCount>
<originID>quakeml:earthquake.usgs.gov/realtime/product/origin/nc72431490/nc/1429535409370/product.xml</originID>
<evaluationMode>automatic</evaluationMode>
<creationInfo>
<agencyID>NC</agencyID>
<creationTime>2015-04-20T13:10:09.370Z</creationTime>
</creationInfo>
</magnitude>
<preferredOriginID>quakeml:earthquake.usgs.gov/realtime/product/origin/nc72431490/nc/1429535409370/product.xml</preferredOriginID>
<preferredMagnitudeID>quakeml:earthquake.usgs.gov/realtime/product/origin/nc72431490/nc/1429535409370/product.xml#magnitude</preferredMagnitudeID>
<type>earthquake</type>
<creationInfo>
<agencyID>nc</agencyID>
<creationTime>2015-04-20T13:17:04.229Z</creationTime>
<version>0</version>
</creationInfo>
</event>
<creationInfo>
<creationTime>2015-04-20T13:31:33.000Z</creationTime>
</creationInfo>
</eventParameters>
</q:quakeml>
'
;WITH XMLNAMESPACES ( 'http://quakeml.org/xmlns/quakeml/1.2' AS q, DEFAULT 'http://quakeml.org/xmlns/bed/1.2' )
INSERT INTO #HOLDER (MyDescription , Longitude , Magnitude , MagType )
SELECT
MyDescriptionType = Y.i.value('./description[1]/type[1]/.', 'varchar(64)')
, MyLongitude = Y.i.value('./origin[1]/longitude[1]/.', 'numeric(18,6)')
, MyMagValue = Y.i.value('./magnitude[1]/mag[1]/value[1]/.', 'varchar(64)')
, MagType = Y.i.value('./magnitude[1]/type[1]/.', 'varchar(64)')
FROM
@xmldoc.nodes('/q:quakeml/eventParameters/event') AS Y(i)
/* Optional */
/* CREATE CLUSTERED INDEX IDX_TempHolder_ID ON #Holder (ID) */
CREATE INDEX IDX_TempHolder_ID ON #Holder (ID)
/* HERE you go from #temp table to real table */
Insert into dbo.RealTable ( Description , Longitude , Magnitude , MagType )
select MyDescription , Longitude , Magnitude , MagType from #Holder
IF OBJECT_ID('tempdb..#Holder') IS NOT NULL
begin
drop table #Holder
end
答案 1 :(得分：0)
对于WordProcessingDocument中加载的文档的原始文本，可以使用。
-------------------------------------------------------------------------------
visiting function: bar
Found expression node at: line: 3; col: 4
found a print
-------------------------------------------------------------------------------
visiting function: foo
-------------------------------------------------------------------------------
visiting function: baz
Found expression node at: line: 3; col: 8
found a print
对于XML：
string rawText = wordprocessingDocument.MainDocumentPart.Document.ChildElements[0].InnerText;