Extract attributes

Question

I have a very simple piece of xml:
<?xml version="1.0" encoding="UTF-8"?>
<MyData Matches="3">
  <Match My_code="101" />
  <Match My_code="102" />
  <Match My_code="103" />
</MyData>and what I am after is a list of the My_code attributes, as a list of numbers. i.e.
101
102
103Closest I can get is using extract, but that gives me a single string of xmltype :- 101102103. Extractvalue gives "ORA-19025: EXTRACTVALUE returns value of only one node".
I'm sure this is pretty simple, but I'm having some kind of mental block this afternoon! Thanks.

Answer 1

I've managed to find a solution:
SELECT   (EXTRACTVALUE (match.COLUMN_VALUE, '/Match/@My_code')) MY_CODE
  FROM   XMLTABLE ('/MyData/Match' PASSING xmltype('<?xml version="1.0" encoding="UTF-8"?><MyData Matches="3"><Match My_code="101" /><Match My_code="102" /><Match My_code="103" /></MyData>')) match;