How to extract a single column from XML and load in Oracle

Question

Hi
below I have a structure of xml files , I just need to extarct <RecordReference>PQPMID:7358</RecordReference>
from file and load in to oracle ..
Please let me know how to do ..??
file content below
HoldingsRecord>
<RecordReference>PQPMID:7358</RecordReference>
<NotificationType>00</NotificationType>
<SerialVersion>
<SerialVersionIdentifier>
<SerialVersionIDType>07</SerialVersionIDType>
<IDValue>1068624X</IDValue>
</SerialVersionIdentifier>
<SerialVersionIdentifier>
<SerialVersionIDType>01</SerialVersionIDType>
<IDTypeName>PMID</IDTypeName>
<IDValue>7358</IDValue>
</SerialVersionIdentifier>
<Title>
<TitleType>02</TitleType>
<TitleText>Pittsburgh Post - Gazette</TitleText>
</Title>
<Publisher>
<PublishingRole>01</PublishingRole>
<PublisherName>Post Gazette Publishing Company</PublisherName>
</Publisher>
<OnlinePackage>
<OnlineServiceName>ProQuest</OnlineServiceName>
<Website>
<WebsiteRole>03</WebsiteRole>
<WebsiteLink>http://proquest.umi.com/pqdweb</WebsiteLink>
</Website>
<HoldingsDetail>
<JournalIssue>
<JournalIssueRole>04</JournalIssueRole>
<JournalIssueDate>
<DateFormat>00</DateFormat>
<Date>19930118</Date>
</JournalIssueDate>
</JournalIssue>
<JournalIssue>
<JournalIssueRole>06</JournalIssueRole>
<JournalIssueDate>
<DateFormat>00</DateFormat>
<Date>20080915</Date>
</JournalIssueDate>
</JournalIssue>
<EpubFormat>10</EpubFormat>
</HoldingsDetail>
</OnlinePackage>
</SerialVersion>
</HoldingsRecord>

Answer 1

My mistake - thought you're looking for a general idea. Here's the working example:
CREATE OR REPLACE PROCEDURE import_test (i_result_file IN XMLTYPE DEFAULT XMLTYPE(bfilename('XMLDIR','my_test.xml'),nls_charset_id('ALT32UTF8')))
IS
xml_rec XMLTYPE;
v_index PLS_INTEGER;
v_rec_ref VARCHAR2(30);
BEGIN
v_index := 1;
WHILE i_result_file.Existsnode('/rec/HoldingsRecord['||To_Char(v_index)||']') > 0
LOOP
BEGIN
--- Get the line
xml_rec := i_result_file.Extract('/rec/HoldingsRecord['||To_Char(v_index)||']');
CASE WHEN i_result_file.Existsnode('rec/HoldingsRecord['||To_Char(v_index)||']/RecordReference') > 0
THEN v_rec_ref := xml_rec.extract('HoldingsRecord/RecordReference/text()').getStringVal();
DBMS_OUTPUT.put_line('v_rec_ref: '||v_rec_ref);
END CASE;
EXCEPTION WHEN OTHERS THEN
DBMS_OUTPUT.put_line('My Message: '||v_index||' '||SQLERRM);
END;
v_index := v_index + 1;
END LOOP;
END import_test;
and here is my_test.xml I have used:
<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<rec>
<HoldingsRecord>
<RecordReference>PQPMID:7358</RecordReference>
<NotificationType>00</NotificationType>
<SerialVersion>
<SerialVersionIdentifier>
<SerialVersionIDType>07</SerialVersionIDType>
<IDValue>1068624X</IDValue>
</SerialVersionIdentifier>
<SerialVersionIdentifier>
<SerialVersionIDType>01</SerialVersionIDType>
<IDTypeName>PMID</IDTypeName>
<IDValue>7358</IDValue>
</SerialVersionIdentifier>
<Title>
<TitleType>02</TitleType>
<TitleText>Pittsburgh Post - Gazette</TitleText>
</Title>
<Publisher>
<PublishingRole>01</PublishingRole>
<PublisherName>Post Gazette Publishing Company</PublisherName>
</Publisher>
<OnlinePackage>
<OnlineServiceName>ProQuest</OnlineServiceName>
<Website>
<WebsiteRole>03</WebsiteRole>
<WebsiteLink>http://proquest.umi.com/pqdweb</WebsiteLink>
</Website>
<HoldingsDetail>
<JournalIssue>
<JournalIssueRole>04</JournalIssueRole>
<JournalIssueDate>
<DateFormat>00</DateFormat>
<Date>19930118</Date>
</JournalIssueDate>
</JournalIssue>
<JournalIssue>
<JournalIssueRole>06</JournalIssueRole>
<JournalIssueDate>
<DateFormat>00</DateFormat>
<Date>20080915</Date>
</JournalIssueDate>
</JournalIssue>
<EpubFormat>10</EpubFormat>
</HoldingsDetail>
</OnlinePackage>
</SerialVersion>
</HoldingsRecord>
<HoldingsRecord>
<RecordReference>PQPMID:9875</RecordReference>
<NotificationType>00</NotificationType>
<SerialVersion>
<SerialVersionIdentifier>
<SerialVersionIDType>07</SerialVersionIDType>
<IDValue>1068624X</IDValue>
</SerialVersionIdentifier>
<SerialVersionIdentifier>
<SerialVersionIDType>01</SerialVersionIDType>
<IDTypeName>PMID</IDTypeName>
<IDValue>7358</IDValue>
</SerialVersionIdentifier>
<Title>
<TitleType>02</TitleType>
<TitleText>Pittsburgh Post - Gazette</TitleText>
</Title>
<Publisher>
<PublishingRole>01</PublishingRole>
<PublisherName>Post Gazette Publishing Company</PublisherName>
</Publisher>
<OnlinePackage>
<OnlineServiceName>ProQuest</OnlineServiceName>
<Website>
<WebsiteRole>03</WebsiteRole>
<WebsiteLink>http://proquest.umi.com/pqdweb</WebsiteLink>
</Website>
<HoldingsDetail>
<JournalIssue>
<JournalIssueRole>04</JournalIssueRole>
<JournalIssueDate>
<DateFormat>00</DateFormat>
<Date>19930118</Date>
</JournalIssueDate>
</JournalIssue>
<JournalIssue>
<JournalIssueRole>06</JournalIssueRole>
<JournalIssueDate>
<DateFormat>00</DateFormat>
<Date>20080915</Date>
</JournalIssueDate>
</JournalIssue>
<EpubFormat>10</EpubFormat>
</HoldingsDetail>
</OnlinePackage>
</SerialVersion>
</HoldingsRecord>
</rec>