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xml query problem [message #147822] Mon, 21 November 2005 05:03 Go to next message
Amal
Messages: 9
Registered: January 2005
Junior Member
Hi for all ppl here...i Hope u may help me with this problem…

Well …
One stage of my project is to store an xml file into a table of XMLType column in structured way (using the schema)
So that’s what I did:
1. I copied the schema file into this folder http://localhost:8080/public/

2. Then I register the schema

SQL> ALTER SESSION SET EVENTS='31098 trace name context forever';

Session altered.

1 begin
2 dbms_xmlschema.registeruri(
3 'http://localhost:8080/public/auction.xsd',
4 '/public/auction.xsd',
5 local=>true, gentypes=>true, genbean=>false, gentables=>false);
6* end;
SQL> r
1 begin
2 dbms_xmlschema.registeruri(
3 'http://localhost:8080/public/auction.xsd',
4 '/public/auction.xsd',
5 local=>true, gentypes=>true, genbean=>false, gentables=>false);
6* end;

PL/SQL procedure successfully completed.

3. after that I create the table as it mentioned below

SQL> create table struc_100kb( xmldoc sys.xmltype)
2 xmltype column xmldoc store as object relational
3 xmlschema "http://localhost:8080/public/auction.xsd"
4 element "site";

Table created.

SQL>SQL> describe struc_100kb
Name Null? Type
----------------------------------------- -------- ----------------------------
XMLDOC SYS.XMLTYPE(XMLSchema "http:
//localhost:8080/public/auct
ion.xsd" Element "site") STO
RAGE Object-relational TYPE
"site171_T"

4. then I used he sqlldr to load the xml document , and that what included in the control file
load data
infile *
replace
into table struc_100kb
fields terminated by ','
(
fname filler char(40),
xmldoc lobfile(fname) terminated by EOF
)
begindata
c:\amal\xmldoc\xmldoc_used\doc100kb.xml

C:\oracle\product\10.1.0\db_1\BIN>sqlldr scott/**** control=c:\amal\work.ctl

But after that when I run any query such as this

select e.xmldoc.extract( 'site/people/person[@id="person12"]/name/text()') from struc_100kb e

I got a message no rows selected

So whats my problem??
Re: xml query problem [message #147907 is a reply to message #147822] Mon, 21 November 2005 11:06 Go to previous messageGo to next message
Amal
Messages: 9
Registered: January 2005
Junior Member
Hi my dearest friends,,,plz i neep ur comments in my problem...Smile
Re: xml query problem [message #147944 is a reply to message #147822] Mon, 21 November 2005 19:43 Go to previous messageGo to next message
Amal
Messages: 9
Registered: January 2005
Junior Member
I thought to show u part of the schema and xml files

auction.xsd

<?xml version="1.0" encoding="UTF-8"?>
<!-- edited with XML Spy v4.4 U (http://www.xmlspy.com) by Brian Murphy (wpi) -->
<!--W3C Schema generated by XML Spy v4.4 U (http://www.xmlspy.com)-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
<xs:element name="address">
<xs:complexType>
<xs:sequence>
<xs:element ref="street"/>
<xs:element ref="city"/>
<xs:element ref="country"/>
<xs:element ref="province" minOccurs="0"/>
<xs:element ref="zipcode"/>
</xs:sequence>
</xs:complexType>
</xs:element>
............
............

doc100kb.xml

<?xml version="1.0" standalone="yes" ?>
- <site>
- <regions>
- <africa>
- <item id="item0">
<location>United States</location>
<quantity>1</quantity>
<name>duteous nine eighteen</name>
<payment>Creditcard</payment>
- <description>
- <parlist>
- <listitem>
- <text>
page rous lady idle authority capt professes stabs monster petition heave humbly removes rescue runs shady peace most piteous worser oak assembly holes patience but malice whoreson mirrors master tenants smocks yielded
<keyword>officer embrace such fears distinction attires</keyword>
</text>
................
..............
Re: xml query problem [message #148511 is a reply to message #147944] Thu, 24 November 2005 16:05 Go to previous messageGo to next message
Amal
Messages: 9
Registered: January 2005
Junior Member
plz plz plz respond to this error..
Re: xml query problem [message #148611 is a reply to message #148511] Fri, 25 November 2005 05:49 Go to previous messageGo to next message
Amal
Messages: 9
Registered: January 2005
Junior Member
This is the log file generated through inserting:

Number to load: ALL
Number to skip: 0
Errors allowed: 50
Bind array: 64 rows, maximum of 256000 bytes
Continuation: none specified
Path used: Conventional

Table STRUC_100KB, loaded from every logical record.
Insert option in effect for this table: REPLACE

Column Name Position Len Term Encl Datatype
------------------------------ ---------- ----- ---- ---- ---------------------
FNAME FIRST 40 , CHARACTER
(FILLER FIELD)
XMLDOC DERIVED * EOF CHARACTER
Dynamic LOBFILE. Filename in field FNAME

Record 1: Rejected - Error on table STRUC_100KB.
ORA-19007: Schema - does not match expected http://localhost:8080/public/auction.xsd.


Table STRUC_100KB:
0 Rows successfully loaded.
1 Row not loaded due to data errors.
0 Rows not loaded because all WHEN clauses were failed.
0 Rows not loaded because all fields were null.


Space allocated for bind array: 2944 bytes(64 rows)
Read buffer bytes: 1048576

Total logical records skipped: 0
Total logical records read: 1
Total logical records rejected: 1
Total logical records discarded: 0

Run began on Sun Nov 06 14:40:25 2005
Run ended on Sun Nov 06 14:40:31 2005

Elapsed time was: 00:00:05.79
CPU time was: 00:00:00.03
Re: xml query problem [message #148615 is a reply to message #148611] Fri, 25 November 2005 06:16 Go to previous messageGo to next message
Maaher
Messages: 7065
Registered: December 2001
Senior Member
I'm no XML specialist, but it seems the message is clear: your XML file doesn't comply with the rules set up in the XSD. Make it compliant.

Just a long shot Very Happy.

MHE
Re: xml query problem [message #148677 is a reply to message #148615] Sat, 26 November 2005 04:57 Go to previous messageGo to next message
Amal
Messages: 9
Registered: January 2005
Junior Member
Ok. how i can make it comply with the rules set up in the XSD??
sorry for this Q. but am not familier with xml databases
Re: xml query problem [message #148684 is a reply to message #148677] Sat, 26 November 2005 05:50 Go to previous messageGo to next message
Maaher
Messages: 7065
Registered: December 2001
Senior Member
I believe the XSD describes how your XML file should look like.
e.g.: your file should contain elements of the type 'address'. Within each address there's a sequence, a street, etc...


Someone correct me if I'm wrong, because this is way out of my league.

I see you use XMLSpy, can't you use that tool to validate your XML file prior to loading it?

MHE
Re: xml query problem [message #148740 is a reply to message #148684] Sun, 27 November 2005 13:56 Go to previous message
Amal
Messages: 9
Registered: January 2005
Junior Member
I added this in the beginning of the xml document….

<?xml version="1.0" standalone="yes" ?>
- <site xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://localhost:8080/public/auction.xsd">
- <regions>
- <africa>


And after I load the document I got this error in the log file associated with sqlldr..

Record 1: Rejected - Error on table STRUC_100KB.
ORA-21700: object does not exist or is marked for delete

Do u know how 2 handle this problem
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