的XMLQuery與MULT命名空間

Question

使用Oracle 12c中

這看起來很簡單，但我必須對如何從一個XML字符串得到一個簡單的元素心理障礙。以下產生的是null值而不是2017.我嘗試了許多不同的方法，但希望堅持使用xmlQuery而不是Extract。不確定是否需要，但至少編譯併產生一些結果。有什麼想法我做錯了什麼？

with stuff AS (Select xmltype('<singleStreamlinedApplication xmlns:ns1="http://www.YYYYY.org/SSA/Person" xmlns="http://www.YYYYY.org/SSA/Person"> 
 
    <ns1:schemaVersion>2.16</ns1:schemaVersion> 
 
    <ns1:changeSource>VVVVVV</ns1:changeSource> 
 
    <ns1:cbmsApplicationId>333333</ns1:cbmsApplicationId> 
 
    <ns1:cbmsCaseId>2222222</ns1:cbmsCaseId> 
 
    <ns1:cbmsAuthorizationId>11111111</ns1:cbmsAuthorizationId> 
 
    <ns1:applicationDate>2012-09-03</ns1:applicationDate> 
 
    <ns1:cbmsUpdateTimestamp>2017-04-02T20:21:34.000Z</ns1:cbmsUpdateTimestamp> 
 
    <ns1:eligibilityDeterminationDate>2017-04-02</ns1:eligibilityDeterminationDate> 
 
<ns1:eligibilityPurpose>QUALIFIED_LIFE_CHANGE_EVENT</ns1:eligibilityPurpose> 
 
<ns1:applicationCoverageYear>2017</ns1:applicationCoverageYear> 
 
<ns1:peakAccountId>5555555</ns1:peakAccountId> 
 
<ns1:applyingForWho>CONTACT_NAME_AND_OTHER_FAMILY_MEMBERS</ns1:applyingForWho> 
 
<ns1:applyingForFinancialAssistanceIndicator>true</ns1:applyingForFinancialAssistanceIndicator> 
 
<ns1:agreement> 
 
<ns1:noHouseholdMemberIncarceratedIndicator>true</ns1:noHouseholdMemberIncarceratedIndicator> 
 
<ns1:dontRenewEligibilityForFinancialBenefitsIndicator>true</ns1:dontRenewEligibilityForFinancialBenefitsIndicator> 
 
<ns1:electronicSignatureIndicator>true</ns1:electronicSignatureIndicator> 
 
</ns1:agreement> 
 
<ns1:taxHousehold> 
 
<ns1:cbmsTaxHouseholdId>999999</ns1:cbmsTaxHouseholdId> 
 
<ns1:cbmsMagiIncomeAmount>0.0</ns1:cbmsMagiIncomeAmount> 
 
<ns1:cbmsFederalPovertyLevel>0</ns1:cbmsFederalPovertyLevel> 
 
<ns1:householdMember> 
 
<ns1:cbmsPersonId>8888888</ns1:cbmsPersonId> 
 
<ns1:name> 
 
<ns1:firstName>XXXXX</ns1:firstName> 
 
<ns1:lastName>YYYYY</ns1:lastName> 
 
</ns1:name> 
 
<ns1:dateOfBirth>1900-10-06</ns1:dateOfBirth> 
 
<ns1:householdContactIndicator>false</ns1:householdContactIndicator> 
 
<ns1:applyingForCoverageIndicator>true</ns1:applyingForCoverageIndicator> 
 
<ns1:relationshipTypeToHouseholdContact>SON_OR_DAUGHTER</ns1:relationshipTypeToHouseholdContact> 
 
<ns1:livesWithHouseholdContactIndicator>true</ns1:livesWithHouseholdContactIndicator> 
 
<ns1:planToFileFTRIndicator>false</ns1:planToFileFTRIndicator> 
 
<ns1:claimedAsDependantOnFTRIndicator>false</ns1:claimedAsDependantOnFTRIndicator> 
 
<ns1:claimedAsDependantOnSomeoneElsesFTRIndicator>false</ns1:claimedAsDependantOnSomeoneElsesFTRIndicator> 
 
<ns1:gender>FEMALE</ns1:gender> 
 
<ns1:parentCaretakerIndicator>true</ns1:parentCaretakerIndicator> 
 
<ns1:disabledIndicator>false</ns1:disabledIndicator> 
 
<ns1:lifeChangeEvent> 
 
<ns1:lifeStatusChangeReportingDate>2017-04-02</ns1:lifeStatusChangeReportingDate> 
 
<ns1:lifeStatusEventDate>2017-04-02</ns1:lifeStatusEventDate> 
 
<ns1:qualifiedLifeChangeEvent>CHANGE_OF_INCOME</ns1:qualifiedLifeChangeEvent> 
 
</ns1:lifeChangeEvent> 
 
</ns1:householdMember> 
 
</ns1:taxHousehold> 
 
</singleStreamlinedApplication>') 
 
xmlcol from dual 
 
) 
 
Select xmlquery('xquery version "1.0"; 
 
declare namespace ns1="http://www.YYYYY.org/SSA/Person"; 
 
for $i in /singleStreamlinedApplicationRequest 
 
return $i/ns1:applicationCoverageYear' PASSING stuff.xmlcol RETURNING CONTENT) plan_year 
 
from stuff

Answer 1

Select xmlquery('xquery version "1.0"; 
declare default element namespace "http://www.YYYYY.org/SSA/Person"; 
declare namespace ns1="http://www.YYYYY.org/SSA/Person"; 
for $i in /singleStreamlinedApplication 
return $i/ns1:applicationCoverageYear' 
PASSING stuff.xmlcol RETURNING CONTENT) plan_year 
from stuff 

根元素是singleStreamlinedApplication這elemnt是命名空間中的xmlns = 「http://www.YYYYY.org/SSA/Person」。如果你不包含declare默認元素命名空間oracle，請嘗試從defult命名空間獲取此元素。