【发布时间】：2021-05-18 08:53:48
【问题描述】：
我正在尝试使用以下 oracle SQL 查询从 xml 中提取值，但它正在重新调整空数据。我不确定我的查询出了什么问题，但它适用于常规 xml（没有名称空间和 CDATA）。如果 xml 中有 CDATA 和命名空间，任何人都可以知道如何提取值。请帮忙。提前致谢。
SELECT EXTRACT (VALUE (a1), '/AttachedDocument/ParentDocumentID/text()').getStringVal () AS ParentDocumentID
,EXTRACT (VALUE (a1), '/AttachedDocument/SenderParty/PartyTaxScheme/RegistrationName/text()').getStringVal () AS RegistrationName
,EXTRACT (VALUE (a1), '/AttachedDocument/Attachment/ExternalReference/MimeCode/text()').getStringVal () AS MimeCode
,EXTRACT (VALUE (a1), '/AttachedDocument/Attachment/ExternalReference/Description/DocumentCurrencyCode/text()').getStringVal () AS DocumentCurrencyCode
,EXTRACT (VALUE (a1), '/AttachedDocument/Attachment/ExternalReference/Description/AccountingSupplierParty/Party/PartyName/Name/text()').getStringVal () AS PartyName
FROM
TABLE (
XMLSEQUENCE (
EXTRACT ( xmltype(
'<?xml version="1.0" encoding="UTF-8"?>
<AttachedDocument xmlns="urn:oasis:names:specification:ubl:schema:xsd:AttachedDocument-2" xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2" xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" xmlns:ccts="urn:un:unece:uncefact:data:specification:CoreComponentTypeSchemaModule:2" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:ext="urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2" xmlns:xades="http://uri.etsi.org/01903/v1.3.2#" xmlns:xades141="http://uri.etsi.org/01903/v1.4.1#">
<cbc:DocumentType>Test Doc</cbc:DocumentType>
<cbc:ParentDocumentID>1245</cbc:ParentDocumentID>
<cac:SenderParty>
<cac:PartyTaxScheme>
<cbc:RegistrationName>SSS</cbc:RegistrationName>
<cbc:CompanyID schemeName="5" schemeID="8" schemeAgencyID="195">11000912</cbc:CompanyID>
<cac:TaxScheme>
<cbc:Name>IVA</cbc:Name>
</cac:TaxScheme>
</cac:PartyTaxScheme>
</cac:SenderParty>
<cac:Attachment>
<cac:ExternalReference>
<cbc:MimeCode>text/xml</cbc:MimeCode>
<cbc:EncodingCode>UTF-8</cbc:EncodingCode>
<cbc:Description><![CDATA[<?xml version="1.0" encoding="utf-8"?><Invoice xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2" xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2" xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" xmlns:ext="urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2" xmlns:sts="dian:gov:co:facturaelectronica:Structures-2-1" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:xades="http://uri.etsi.org/01903/v1.3.2#" xmlns:xades141="http://uri.etsi.org/01903/v1.4.1#" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<cbc:DocumentCurrencyCode>COP</cbc:DocumentCurrencyCode>
<cac:AccountingSupplierParty>
<cbc:AdditionalAccountID schemeAgencyID="195">1</cbc:AdditionalAccountID>
<cac:Party>
<cac:PartyName>
<cbc:Name>First & Sample SSS</cbc:Name>
</cac:PartyName>
</cac:AccountingSupplierParty>]]></cbc:Description>
</cac:ExternalReference>
</cac:Attachment>
</AttachedDocument>'),
'/AttachedDocument' ,
'xmlns="urn:oasis:names:specification:ubl:schema:xsd:AttachedDocument-2"
xmlns:ds="http://www.w3.org/2000/09/xmldsig#"
xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2"
xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
xmlns:ccts="urn:un:unece:uncefact:data:specification:CoreComponentTypeSchemaModule:2"
xmlns:ext="urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2"
xmlns:xades="http://uri.etsi.org/01903/v1.3.2#"
xmlns:xades141="http://uri.etsi.org/01903/v1.4.1#"'
))) a1
【问题讨论】：
-
我假设你必须声明命名空间，参见：stackoverflow.com/questions/38439595/…