How to delete an .xml file from xmltype table?

Question

Hi expert,
I am in I am in Oracle Enterprise Manager 11g 11.2.0.1.0.
SQL*Plus: Release 11.2.0.1.0 Production on Tue Feb 22 11:40:23 2011
I have inserted 3 .xml files into an xmltype table: DOCUMENT
SQL> SELECT OBJECT_VALUE FROM document;
OBJECT_VALUE
<?xml version="1.0" encoding="WINDOWS-1252"?>
<?xml-stylesheet href="http://www.accessdata.fda.gov/spl/stylesheet/spl.xsl" type="text/xsl"?>
<document xmlns="urn:hl7-org:v3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLoc
ation="urn:hl7-org:v3 http://localhost:8080/home/DEV/xsd/spl.xsd" classCode="DOC">
<id root="5ca4e3cb-7298-4948-8cc2-58e71ad32694"/>
<code code="51725-0" c
<?xml version="1.0" encoding="WINDOWS-1252"?>
<?xml-stylesheet href="http://www.accessdata.fda.gov/spl/stylesheet/spl.xsl" type="text/xsl"?>
<document xmlns="urn:hl7-org:v3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLoc
ation="urn:hl7-org:v3 http://localhost:8080/home/DEV/xsd/spl.xsd" classCode="DOC">
<id root="03d6a2cd-fdda-4fe1-865d-da0db9212f34"/>
<code code="51725-0" c
<?xml version="1.0" encoding="WINDOWS-1252"?>
<?xml-stylesheet href="http://www.accessdata.fda.gov/spl/stylesheet/spl.xsl" type="text/xsl"?>
<document xmlns="urn:hl7-org:v3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLoc
ation="urn:hl7-org:v3 http://localhost:8080/home/DEV/xsd/spl.xsd" classCode="DOC">
<id root="09ff06d6-8b85-43dd-b5cc-e22d00f02bd0"/>
<code code="51725-0" c
I tried to delete one xml file which with id root="03d6a2cd-fdda-4fe1-865d-da0db9212f34'
delete from DOCUMENT
where xmlexists('$p/document/id[@root="03d6a2cd-fdda-4fe1-865d-da0db9212f34"]'PASSING OBJECT_VALUE AS "p");
but failed.
Is there any expert can help?
Thanks a lot!
Cow
Edited by: Cow on Mar 11, 2011 7:02 PM

Answer 1

Hi,
Namespace issue.
You have to declare it in the XQuery prolog :
DELETE FROM document
WHERE XMLExists( 'declare default element namespace "urn:hl7-org:v3"; (::)
                  $p/document/id[@root=$root_value]'
                 passing object_value as "p",
                         '03d6a2cd-fdda-4fe1-865d-da0db9212f34' as "root_value" )
;