Reading XML file from PL/SQL

Question

Hi,
I have a requirement where in I have to read email addresses from the xml file on the OS and use pass it on to a procedure as parameters.
this is the xml file
<?xml version="1.0" encoding="UTF-8" ?>
- <V21>
- <ToAddress>
+ <User>
<Emailid>[email protected]</Emailid>
</User>
- <UserGroup2>
<Emailid>[email protected]</Emailid>
</UserGroup2>
</ToAddress>
- <FromAddress>
<Emailid>[email protected]</Emailid>
</FromAddress>
<HelpDeskNumber>99999999</HelpDeskNumber>
<MailFormat>text/plain</MailFormat>
</V21>
can somebody guide me as to how one can read the XML file (residing in OS) and extract the email fields.

Answer 1

Can you throw in some light on how to read XML in pl/sql in oracle 9i?Simplest example:
SQL> DECLARE
  2    xml XMLTYPE := XMLTYPE(
  3  '<?xml version="1.0" encoding="UTF-8" ?>
  4  <V21>
  5  <ToAddress>
  6  <User>
  7  <Emailid>[email protected]</Emailid>
  8  </User>
  9  <UserGroup2>
10  <Emailid>[email protected]</Emailid>
11  </UserGroup2>
12  </ToAddress>
13  <FromAddress>
14  <Emailid>[email protected]</Emailid>
15  </FromAddress>
16  <HelpDeskNumber>99999999</HelpDeskNumber>
17  <MailFormat>text/plain</MailFormat>
18  </V21>') ;
19  BEGIN
20    dbms_output.put_line(xml.extract('/V21/ToAddress/User/Emailid/text()').getStringVal()) ;
21  END ;
22  /
[email protected]
PL/SQL procedure successfully completed.
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