Oracle 11g中的XML

Question

Good day.

I have a xml in a variable of type "xmltype". xml in question is this:

<soap-env:Envelope xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope/">
<soap-env:Header />
<soap-env:Body>
    <n0:EmployeeDataByIdentificationResponse_sync xmlns:n0="http://sap.com/xi/SAPGlobal20/Global" xmlns:prx="urn:sap.com:proxy:GH6:/1SAI/TASBA84FA60747163FD5188:804">
        <EmployeeData>
            <ChangeStateID>                 20160923221906.7365850</ChangeStateID>
            <UUID>00163e06-cc41-1ee3-bb8f-eebd7b8a466e</UUID>
            <EmployeeID>300056</EmployeeID>
            <EmploymentData>
                <UUID>00163e06-cc41-1ed3-bb9a-250ba8cddcd3</UUID>
                <ChangeStateID>                 20140605164803.5438320</ChangeStateID>
                <EmploymentCountryCode>MX</EmploymentCountryCode>
                <WorkAgreementData>
                    <UUID>00163e06-cc41-1ed3-bb9a-250ba8ce5cd3</UUID>
                    <ChangeStateID>                 20160730162955.5720390</ChangeStateID>
                    <WorkAgreementID>300056/001</WorkAgreementID>
                    <ValidityPeriod>
                        <StartDate>1998-05-18</StartDate>
                        <EndDate>9999-12-31</EndDate>
                    </ValidityPeriod>
                    <AdditionalClauses>
                        <ValidityPeriod>
                            <StartDate>1998-05-18</StartDate>
                            <EndDate>9999-12-31</EndDate>
                        </ValidityPeriod>
                        <AgreedWorkingTimeRate>
                            <DecimalValue>8.0</DecimalValue>
                            <BaseMeasureUnitCode>DAY</BaseMeasureUnitCode>
                        </AgreedWorkingTimeRate>
                        <WorkAgreementTypeCode>1</WorkAgreementTypeCode>
                        <WorkAgreementAdministrativeCategoryCode listID="MX">2</WorkAgreementAdministrativeCategoryCode>
                    </AdditionalClauses>
                    <OrganisationalAssignment>
                        <ValidityPeriod>
                            <StartDate>2013-01-01</StartDate>
                            <EndDate>9999-12-31</EndDate>
                        </ValidityPeriod>
                        <PositionAssignment>
                            <ValidityPeriod>
                                <StartDate>2013-01-01</StartDate>
                                <EndDate>9999-12-31</EndDate>
                            </ValidityPeriod>
                            <PositionUUID>00163e06-cc41-1ed3-bb9a-24e569a75cd3</PositionUUID>
                            <PositionID>POS30005620140605164</PositionID>
                            <AssignmentPercent>100.0</AssignmentPercent>
                            <OrganisationalCenterDetails>
                                <ValidityPeriod>
                                    <StartDate>2013-01-01</StartDate>
                                    <EndDate>9999-12-31</EndDate>
                                </ValidityPeriod>
                                <OrganisationalCenterUUID>00163e06-cc41-1ed3-bb82-fea27ecddec6</OrganisationalCenterUUID>
                                <OrganisationalCenterID>LFSA11514</OrganisationalCenterID>
                            </OrganisationalCenterDetails>
                            <JobAssignmentDetails>
                                <ValidityPeriod>
                                    <StartDate>2013-01-01</StartDate>
                                    <EndDate>9999-12-31</EndDate>
                                </ValidityPeriod>
                                <JobUUID>00163e06-cc41-1ee3-bb88-68132a6b7aa2</JobUUID>
                                <JobID>PR006</JobID>
                            </JobAssignmentDetails>
                        </PositionAssignment>
                        <ReportingLineUnit>
                            <Id>LFSA11000</Id>
                            <Name>Laboratorios Finlay San Pedro Sula</Name>
                            <ValidityPeriod>
                                <StartDate>2013-01-01</StartDate>
                                <EndDate>2013-12-31</EndDate>
                            </ValidityPeriod>
                        </ReportingLineUnit>
                        <ReportingLineUnit>
                            <Id>LFSA11510</Id>
                            <Name>Produccion</Name>
                            <ValidityPeriod>
                                <StartDate>2014-01-01</StartDate>
                                <EndDate>2014-12-14</EndDate>
                            </ValidityPeriod>
                        </ReportingLineUnit>
                        <ReportingLineUnit>
                            <Id>LFSA11510</Id>
                            <Name>Produccion</Name>
                            <ValidityPeriod>
                                <StartDate>2014-12-15</StartDate>
                                <EndDate>9999-12-31</EndDate>
                            </ValidityPeriod>
                        </ReportingLineUnit>
                        <CostCenter>
                            <Id>LFSA11514</Id>
                            <Name>Liquidos Jarabes</Name>
                            <ValidityPeriod>
                                <StartDate>2013-01-01</StartDate>
                                <EndDate>2013-12-31</EndDate>
                            </ValidityPeriod>
                        </CostCenter>
                        <CostCenter>
                            <Id>LFSA11514</Id>
                            <Name>Liquidos Jarabes</Name>
                            <ValidityPeriod>
                                <StartDate>2014-01-01</StartDate>
                                <EndDate>2014-12-14</EndDate>
                            </ValidityPeriod>
                        </CostCenter>
                        <CostCenter>
                            <Id>LFSA11514</Id>
                            <Name>Liquidos Jarabes</Name>
                            <ValidityPeriod>
                                <StartDate>2014-12-15</StartDate>
                                <EndDate>9999-12-31</EndDate>
                            </ValidityPeriod>
                        </CostCenter>
                    </OrganisationalAssignment>
                </WorkAgreementData>
            </EmploymentData>
            <BiographicalData>
                <ValidityPeriod>
                    <StartDate>0001-01-01</StartDate>
                    <EndDate>9999-12-31</EndDate>
                </ValidityPeriod>
                <FormOfAddressCode>0001</FormOfAddressCode>
                <AcademicTitleCode>Z011</AcademicTitleCode>
                <GivenName>Maria</GivenName>
                <FamilyName>Reyes</FamilyName>
                <AdditionalFamilyName>Membreno</AdditionalFamilyName>
                <MiddleName>Elena</MiddleName>
                <GenderCode>2</GenderCode>
                <BirthName>ronal</BirthName>
                <BirthDate>1967-11-20</BirthDate>
                <MaritalStatusCode>1</MaritalStatusCode>
                <NationalityCountryCode>HN</NationalityCountryCode>
            </BiographicalData>
            <AddressInformation>
                <UUID>00163e06-cc41-1ee3-bb8f-eebd7b8aa66e</UUID>
                <ValidityPeriod>
                    <StartDate>0001-01-01</StartDate>
                    <EndDate>9999-12-31</EndDate>
                </ValidityPeriod>
                <Address>
                    <PostalAddress>
                        <CountryCode>HN</CountryCode>
                        <StreetPostalCode>21101</StreetPostalCode>
                        <StreetName>Baracoa</StreetName>
                        <TimeZoneCode>UTC-6</TimeZoneCode>
                    </PostalAddress>
                    <Telephone>
                        <TelephoneFormattedNumberDescription>55555</TelephoneFormattedNumberDescription>
                        <NormalisedNumberDescription>55555</NormalisedNumberDescription>
                        <MobilePhoneNumberIndicator>true</MobilePhoneNumberIndicator>
                        <SMSEnabledIndicator>true</SMSEnabledIndicator>
                    </Telephone>
                </Address>
            </AddressInformation>
            <WorkplaceAddressInformation>
                <UUID>00163e06-cc41-1ee3-bb8f-eebd7b8ce66e</UUID>
                <WorkplaceAddressOrganisation>
                    <TypeCode>1</TypeCode>
                    <PostalAddress>
                        <CountryCode>HN</CountryCode>
                        <StreetPostalCode>21101</StreetPostalCode>
                        <StreetName>Baracoa</StreetName>
                        <TimeZoneCode>UTC-6</TimeZoneCode>
                    </PostalAddress>
                </WorkplaceAddressOrganisation>
            </WorkplaceAddressInformation>
        </EmployeeData>
        <ProcessingConditions>
            <ReturnedQueryHitsNumberValue>1</ReturnedQueryHitsNumberValue>
            <MoreHitsAvailableIndicator>false</MoreHitsAvailableIndicator>
            <LastReturnedObjectID>00163E06CC411EE3BB8FEEBD7B8A466E</LastReturnedObjectID>
        </ProcessingConditions>
    </n0:EmployeeDataByIdentificationResponse_sync>
</soap-env:Body>

and I want to get the "id" node "Cost Center" field when the date of the "EndDate" field "ValidityPeriod" is greater than the current date.

For that I have the following query but is not working for me.

FOR r IN (
                SELECT ExtractValue(Value(p),'/OrganisationalAssignment/CostCenter/Id/text()') as CODIGO_CECO,
                       ExtractValue(Value(p),'/OrganisationalAssignment/CostCenter/Name/text()') as DESCRIPCION_CECO        
                  FROM TABLE(XMLSequence(Extract(xrespond,'/WorkAgreementData/OrganisationalAssignment'))) p
                 WHERE TO_DATE(ExtractValue(Value(p),'/OrganisationalAssignment/ValidityPeriod/EndDate/text()'),'RRRR-MM-DD') >= TRUNC(SYSDATE)
        ) LOOP    
            CECOID := r.CODIGO_CECO;
            CECODESCRIPCION := r.DESCRIPCION_CECO;
          END LOOP; 

I get an error that the nodes returned too many rows.

how could I do to get the id field "Cost Center" when the date "validityPeriod" is greater than the current one.

Regards

Answer 1

The extractValue() function is deprecated anyway ; you can use XMLTable() to get multiple results from your XML.

With the value you posted, this:

FOR r IN (
        SELECT *
        FROM XMLTable('//WorkAgreementData/OrganisationalAssignment/CostCenter'
        PASSING xrespond
        COLUMNS CODIGO_CECO VARCHAR(10) PATH 'Id',
            DESCRIPCION_CECO VARCHAR(50) PATH 'Name',
            START_DATE DATE PATH 'ValidityPeriod/StartDate',
            END_DATE DATE PATH 'ValidityPeriod/EndDate'
        )
        WHERE END_DATE >= TRUNC(SYSDATE)
    ) LOOP    
        CECOID := r.CODIGO_CECO;
        CECODESCRIPCION := r.DESCRIPCION_CECO;

        dbms_output.put_line(CECOID ||' : '|| CECODESCRIPCION
          ||' : '|| r.START_DATE ||' : '|| r.END_DATE);
      END LOOP; 

generates:

PL/SQL procedure successfully completed.

LFSA11514 : Liquidos Jarabes : 15-DEC-14 : 31-DEC-99

You need the EndDate in the XMLTable's column list so you can then filter that to using sysdate ; I've included the StartDate as well just to show you can really. You can add other columns too if you need more data.

You could also do the filtering in the XPath, using xs:date() and fn:current-date() :

FOR r IN (
        SELECT *
        FROM XMLTable('for $i in //WorkAgreementData/OrganisationalAssignment/CostCenter
            where xs:date($i/ValidityPeriod/EndDate) ge fn:current-date()
            return $i'
        PASSING xrespond
        COLUMNS CODIGO_CECO VARCHAR(10) PATH 'Id',
            DESCRIPCION_CECO VARCHAR(50) PATH 'Name'
        )
...