Getting all occurrences from a clob field

I created a clob field to store an XML document. I have tried the SUBSTR, INSTR, REGEXP_SUBSTR, DBMS_LOB.INSTR functions to extract all occurrence of the XML tab <systemLink>.
I just get 1 occurrence of the XML tag.
Has anyone done this before.
Thanks.

All occurrences in a single row
select extract(xmltype(your_clob_field),'//systemLink')
from dualOr all occurrences in distinct rows
select *
from TABLE (XMLSEQUENCE (EXTRACT (XMLTYPE (your_clob_field), '//systemLink'))) ; Max
http://oracleitalia.wordpress.com

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