XML Problems Oracle9i Enterprise Edition Release 9.2.0.7.0

Question

Can anyone help me with my problem!
I am trying to import xml file into xmltype table (this is working fine), but then I want to extract data from this xmltype table but I get null from my request.
Please I need help. I have tried some examples and it is working, so I think that I am doing something wrong or the file that I have imported is not O.K.
Pleeeeeease help me.
I have this XML file:
<?xml version="1.0" ?>
<TecKomBS xmlns="http://www.bsi.si" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.bsi.si http://www.bsi.si/_data/tecajnice/TecKomBS.xsd">
<tecajnica datum="2007-01-17" veljavnost="2007-01-18">
<tecaj oznaka="GBP" sifra="826">
<nakupni>0.65784</nakupni>
<prodajni>0.65586</prodajni>
</tecaj>
<tecaj oznaka="CZK" sifra="203">
<nakupni>27.910</nakupni>
<prodajni>27.826</prodajni>
</tecaj>
<tecaj oznaka="NOK" sifra="578">
<nakupni>8.3605</nakupni>
<prodajni>8.3355</prodajni>
</tecaj>
</tecajnica>
</TecKomBS>
I have loaded this file into xmltype table:
CREATE TABLE xml_tab (
id NUMBER(10),
filename VARCHAR2(100),
xml XMLTYPE)
For loading I have uset load_xml procedure that I've got from help file.
And it works fine. So I have xmltype table with xml data.
Now I need to get data from this table and I have tried this:
SQL> select extract(xml, '/TecKomBS/tecajnica') neki from xml_tab;
NEKI()
SQL>
(and I get nothing)
and this
SQL> select value(p)
2 from xml_tab x
3 , table(XMLSequence(
4 extract(x.xml, '/TecKomBS/tecajnica/tecaj'))) p;
no rows selected
SQL>
(and I got nothing)
I would like to get data from "tecaj (sifra)" and data from "nakupni" or "prodajni" ?
Can any one tell me what I am doing wrong, thanks?
For help this is strusture file for xml file, if it helps
<?xml version="1.0" ?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.bsi.si" xmlns="http://www.bsi.si" elementFormDefault="qualified">
<xsd:simpleType name="Tsif">
<xsd:restriction base="xsd:string">
<xsd:length value="3" />
<xsd:pattern value="\d{3}" />
</xsd:restriction>
</xsd:simpleType>
<xsd:simpleType name="Tozn">
<xsd:restriction base="xsd:string">
<xsd:length value="3" />
<xsd:pattern value="[A-Z]{3}" />
</xsd:restriction>
</xsd:simpleType>
<xsd:element name="TecKomBS">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="tecajnica" minOccurs="1" maxOccurs="1">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="tecaj" maxOccurs="unbounded">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="nakupni" type="xsd:decimal" />
<xsd:element name="prodajni" type="xsd:decimal" />
</xsd:sequence>
<xsd:attribute name="oznaka" type="Tozn" use="required" />
<xsd:attribute name="sifra" type="Tsif" use="required" />
</xsd:complexType>
</xsd:element>
</xsd:sequence>
<xsd:attribute name="datum" type="xsd:date" use="required" />
<xsd:attribute name="veljavnost" type="xsd:date" use="required" />
</xsd:complexType>
</xsd:element>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>
I think that the problem is with my XPath, can anyone help me with this example ?
THANKS .....
Message was edited by:
user448268

Answer 1

SQL>
SQL> var xmltext varchar2(4000)
SQL> --
SQL> begin
  2    :xmltext :=
  3  '<?xml version="1.0" encoding="UTF-8"?>
  4  <TecKomBS xmlns="http://www.bsi.si" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.bsi.si http://www.bsi.si
/_data/tecajnice/TecKomBS.xsd">
  5     <tecajnica datum="2007-01-17" veljavnost="2007-01-18">
  6             <tecaj oznaka="GBP" sifra="826">
  7                     <nakupni>0.65784</nakupni>
  8                     <prodajni>0.65586</prodajni>
  9             </tecaj>
10             <tecaj oznaka="CZK" sifra="203">
11                     <nakupni>27.910</nakupni>
12                     <prodajni>27.826</prodajni>
13             </tecaj>
14             <tecaj oznaka="NOK" sifra="578">
15                     <nakupni>8.3605</nakupni>
16                     <prodajni>8.3355</prodajni>
17             </tecaj>
18     </tecajnica>
19  </TecKomBS>';
20  end;
21  /
PL/SQL procedure successfully completed.
SQL> column SIFRA format a20
SQL> column NAKUPNI format a20
SQL> column PRODAJNI format a20
SQL> --
SQL> select extractValue(value(t),'/tecaj/@sifra','xmlns="http://www.bsi.si" ') SIFRA,
  2         extractValue(value(t),'/tecaj/nakupni','xmlns="http://www.bsi.si" ') NAKUPNI,
  3         extractValue(value(t),'/tecaj/prodajni','xmlns="http://www.bsi.si" ') PRODAJNI
  4    from table(xmlsequence(extract(xmltype(:xmltext),'/TecKomBS/tecajnica/tecaj','xmlns="http://www.bsi.si" '))) t
  5  /
SIFRA                NAKUPNI              PRODAJNI
826                  0.65784              0.65586
203                  27.910               27.826
578                  8.3605               8.3355
SQL>
SQL>
SQL>
SQL