PL/SQL XML Parser

Are there are any samples available to show
how data can be pulled from the database in
XML format using the XML Parser for PL/SQL ?
The currently available samples show how to
process an inbound XML file and break out the data and another sample shows how a XML file can have XSL transformation applied to it. These are good but I would like in addition, to display database data in XML format using the parser. Thanks ahead.

Better to use the XML SQL utility for this task, which is designed to handle the job in Java or PL/SQL.

Similar Messages

Error while running PL/SQL XML Parser Samples

every time try to run the PL/SQL XML Parser Sample program i get this error no file or directory, though the file and dir exists, i have the permissions setup as in readme.txt do i need to do any chnages to init.ora,
pls advice
Thanks,
SQL> exec test
begin test; end;
ERROR at line 1:
ORA-20100: Error occurred while parsing: No such file or directory
ORA-06512: at "SCOTT.XMLPARSER", line 22
ORA-06512: at "SCOTT.XMLPARSER", line 69
ORA-06512: at "SCOTT.TEST", line 13
ORA-06512: at line 1

Which examples in particular? Thanks.

?xml version = '1.0' encoding = 'ASCII'? pl/sql xml parser

When ever I parse a document which has the
<?xml version = '1.0' encoding = 'ASCII'?> tag as the first line hangs the pl/sql xml parser . If I remove the "encoding = 'ASCII'" from the file everything works fine ! What is the problem ?
version 8.1.6 / plsql parser v2 / hpux 11x
Here is the input file
<?xml version = '1.0' encoding = 'ASCII'?>
!--- This is a comment -->
<person>
<employee>
<lastname>GHANTASALA</lastname>
<firstname>SREE</firstname>
<age>32</age>
</employee>
<employee>
<lastname>TAMATAM</lastname>
<firstname>SATISH</firstname>
<age>30</age>
</employee>
</person>
Here is my program
declare
p xmlparser.parser;
doc xmldom.DOMDocument;
dir varchar2(100) := '/apps/oracle/drugstore';
errfile varchar2(30) := 'err.txt' ;
inpfile varchar2(30) := 'person.xml';
nl xmldom.DOMNodeList;
len number;
n xmldom.DOMNode;
new_node xmldom.DOMNode;
node_name varchar2(100);
node_value varchar2(100);
begin
-- new parser
p := xmlparser.newParser;
-- Set some characteristics
xmlparser.setValidationMode(p, FALSE);
xmlparser.setErrorLog(p, dir| |'/'| | errfile );
xmlparser.setBaseDir(p, dir);
-- parse input file
xmlparser.parse(p, dir| |'/'| |inpfile);
-- get document
doc := xmlparser.getDocument(p);
-- get all elements
nl := xmldom.getElementsByTagName(doc, '*');
len := xmldom.getLength(nl);
dbms_output.put_line('Length='| |len);
-- loop through elements
for i in 0..len-1 loop
n := xmldom.item(nl, i);
node_name := xmldom.getNodeName(n);
-- get the text node associated with the element node
n := xmldom.getFirstChild(n);
if xmldom.getNodeType(n) = xmldom.TEXT_NODE then
node_value := xmldom.getNodeValue(n);
if node_name='lastname' then
dbms_output.put_line('The value you are looking for is -->:'| |node_value);
if node_value = 'GHANTASALA' then
xmldom.setNodeValue(n,'TEST2');
end if;
end if;
end if;
end loop;
new_node := xmldom.makeNode(doc);
xmldom.writeToFile(new_node, dir | |'/'| |'mod.xml');
end ;
null

The encoding header is actually generated by
by the following piece of code in my pl/sql program .
new_node := xmldom.makeNode(doc);
xmldom.writeToFile(new_node, dir | |'/'| |'mod.xml');
Since this is a document created by the pl/sql parser, I assume there is some meaning to it !
Also why is it hanging ? PL/sql parser should tell me that it is not a valid string !

PL/SQL XML Parser demo

i've downloaded the Pl/SQL XML parser demo - xslsample / domsample - followed the guide , etc but I'm getting ....
BEGIN xslsample ('/export/home/oracle/plmx/sample','family.xml','iden.xsl','family.out','errors.txt'); END;
ERROR at line 1:
ORA-29516: Aurora assertion failure: Assertion failure at eox.c:187
Uncaught exception Root of all Java exceptions:
ORA-06512: at "PLMX.XMLPARSERCOVER", line 0
ORA-06512: at "PLMX.XMLPARSER", line 57
ORA-06512: at "PLMX.XSLSAMPLE", line 28
ORA-06512: at line 1
anybody seen this ??

There is no such limit on our Parser for PL/SQL. Could you
perhaps be using the PLXML Utilities? If you are you might try
our PL/SQL Parser instead.
Oracle XML Team
http://technet.oracle.com
Oracle Technology Network
Premal Mehta (guest) wrote:
: Hi
: I am using PL/SQL XML Parser to add XML data in database. I
: am having trouble when using file sixe greater than 500KB?
: What is the alternative? Can I do something to process
larger
: files?
: Please Help, this is quite urgent.
: Hoping for help,
: Premal.
null

Create document with PL/SQL xml parser

Hello,
I'm trying to create a document with PL/SQL package xmldom on 8.1.7 and write to a file.
The problem is that my file is empty when it's created.
Can anyone send me an example of this simple problem or fullfill my example so it's works.
As you understand I'm new in using XML. :)
My example is:
declare
doc xmldom.DOMDocument;
n xmldom.DOMNode;
e xmldom.domelement;
t xmldom.domtext;
begin
doc := xmldom.newdomdocument;
t := xmldom.createtextnode(doc, 'ROOT');
n := xmldom.makenode(t);
doc := xmldom.makedocument(n);
xmldom.writetofile(doc, 'd:\orant\xdk\plsql\demo\test.xml');
end;
Regards
Hekan

Your problem may be memory for the JavaVM. Remember, the PL/SQL
parser uses the Java XML Parser APIs which run in a VM instance.
Are you running Oracle 8i? If you are you can access our Java
XML parser loaded in 8i's VM directly from your PL/SQL code.
That is in fact how our PL/SQL Parser does it.
Finally, we have no experience loading other XML Parsers into
Oracle.
Oracle XML Team
http://technet.oracle.com
Oracle Technology Network
Premal Mehta (guest) wrote:
: Hi,
: I asked about his a few days back. Pl/SQL parser does not
work
: for XML files of size greater then 500Kb. You replied saying
: that there were no such problem.
: However whenever I try, either I get some exception or
Pl/SQL
: crashes due to memory error. I am clueless. Is there some
: setting that I can do to get away with the problem? Please
: guide...
: Also, tell me about the alternatives.
: Can I write code in Java and load these class filesin Oracle
: and then reference these classes from Pl/SQL code. Can I load
: any other parser for Java in Oracle.
: Looking forward for help...
: Premal.
null

PL/SQL XML Parser Error

Hello,
I just set up the PL/SQL parser and created a procedure and am getting the following error. I am a new developer so any help would be greatly appreachiated. Thanks
ERROR at line 1:
ORA-29541: class XML_WORK.oracle/xml/parser/plsql/XMLParserCover could not be resolved
ORA-06512: at "XML_WORK.XMLPARSERCOVER", line 0
ORA-06512: at "XML_WORK.XMLPARSER", line 57
ORA-06512: at line 14

Steve,
I did as you said and now get the following errors:
ORA-29532: Java call terminated by uncaught Java exception: java.security.AccessControlException: the Permission (java.net.SocketPermission business.buffalo.edu resolve) has not been granted by dbms_java.grant_permission to SchemaProtectionDomain(XML_WORK|PolicyTableProxy(XML_WORK))
ORA-06512: at "XML_WORK.XMLPARSERCOVER", line 0
ORA-06512: at "XML_WORK.XMLPARSER", line 46
ORA-06512: at "XML_WORK.XML_PARSE_TEST", line 19
ORA-06512: at line 2
I created the allow_url_access procedure and the result of the test query appear fine. The url I am using is: http://business.buffalo.edu/hrs/AlfCMTestXML.xml and the results of the test query is as follows. Thanks.
ALLOWED_SERVER_NAME
*.buffalo.edu
*.business.buffalo.edu

PL/SQL XML Parser & loadjava

The instructions I have for the XML Parser utilities say, "...loadjava uploads these classes into a BLOB column in the database table and enables them to be used...by JServer". WHAT column in WHAT table? I have no documentation on loadjava, nor can I find any--even though the instructions say to use the docs in the Java Stored Procedures Developer's Guide, I cannot find that guide after 30 min on the technet.

http://technet.oracle.com/doc/server.815/a64682/app_tool.htm#624087
This should provide the details you need.
You actually shouldn't have to worry about the name of the table. The utility will worry about that as long as your JServer is installed properly.

PL/SQL XML Parser (problem getting text of a node)

I am trying to get the contents of an ELEMENT (node with a CDATA section) using xmldom.getNodeValue(). However, it seems that there is a MAXIMUM number of characters that I can get back.
I think I've found a work-around using xmldom.writeToBuffer() which seems to write all of the CDATA contents to a VARCHAR2 variable. Now my problem is that it is using strings like '&#60' and '&#38'. I recognize these strings as being "internal representations of '<' and '&' respectively. I'd not have to replace every occurence of these types of strings with the ASCII equivalent -especially since I don't know all of the possible '&#nn' strings that may crop up.
Help!

The use of "//" or "\\" appears to be a bug in JServer. It has
been filed. You should not specify the path as a shared
directory as a workaround.
Oracle XML Team
http://technet.oracle.com
Oracle Technology Network
Andre (guest) wrote:
: Oracle 8.1.5 database on NT
: When i try running the example with command:
: SQL*Plus> exec domsample
: ('//SERVER_03/ORACLE/xml_tmp','family.xml', 'err.txt');
: I get the following error:
: ERROR at line 1:
: ORA-20100: Error occurred while parsing:
: //ORACLE/xml_tmp/err.txt
: ORA-06512: at "OEF1_MGR.XMLPARSER", line 43
: ORA-06512: at "OEF1_MGR.XMLPARSER", line 120
: ORA-06512: at "OEF1_MGR.DOMSAMPLE", line 80
: ORA-06512: at line 1
: If i use backward-slashes '\' which should be OK for NT i get:
: ORA-20100: Error occurred while parsing:
: \\ORACLE\xml_tmp/err.txt
: I tried using a directory (create directory ...) but this
: results in the same error.
: Thus anyone now how it should be done?
: Thanks
null

PL/SQL XML Parser - problem running example

Oracle 8.1.5 database on NT
When i try running the example with command:
SQL*Plus> exec domsample
('//SERVER_03/ORACLE/xml_tmp','family.xml', 'err.txt');
I get the following error:
ERROR at line 1:
ORA-20100: Error occurred while parsing:
//ORACLE/xml_tmp/err.txt
ORA-06512: at "OEF1_MGR.XMLPARSER", line 43
ORA-06512: at "OEF1_MGR.XMLPARSER", line 120
ORA-06512: at "OEF1_MGR.DOMSAMPLE", line 80
ORA-06512: at line 1
If i use backward-slashes '\' which should be OK for NT i get:
ORA-20100: Error occurred while parsing:
\\ORACLE\xml_tmp/err.txt
I tried using a directory (create directory ...) but this
results in the same error.
Thus anyone now how it should be done?
Thanks
null

The use of "//" or "\\" appears to be a bug in JServer. It has
been filed. You should not specify the path as a shared
directory as a workaround.
Oracle XML Team
http://technet.oracle.com
Oracle Technology Network
Andre (guest) wrote:
: Oracle 8.1.5 database on NT
: When i try running the example with command:
: SQL*Plus> exec domsample
: ('//SERVER_03/ORACLE/xml_tmp','family.xml', 'err.txt');
: I get the following error:
: ERROR at line 1:
: ORA-20100: Error occurred while parsing:
: //ORACLE/xml_tmp/err.txt
: ORA-06512: at "OEF1_MGR.XMLPARSER", line 43
: ORA-06512: at "OEF1_MGR.XMLPARSER", line 120
: ORA-06512: at "OEF1_MGR.DOMSAMPLE", line 80
: ORA-06512: at line 1
: If i use backward-slashes '\' which should be OK for NT i get:
: ORA-20100: Error occurred while parsing:
: \\ORACLE\xml_tmp/err.txt
: I tried using a directory (create directory ...) but this
: results in the same error.
: Thus anyone now how it should be done?
: Thanks
null

Best Way to Create Generic PL/SQL XML Parser

I have an application that stores xml documents in a table. For each product sold in the system, a different XML document can exist for custom data about that product.
The schemas are stored in another table and not with the xml document. I am looking for a way to parse the nodes at a minium and save the xml fragment for each node or possibly take each node and store each non-repeating elment in another table to make it easier for end users to query the data.
Any suggestions on how to address this?
Thanks

I've been testing XML DB (XMLType Tables and Columns) a few months ago with very good results, this might help. http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14259/xdb03usg.htm#BABDGDJG

XML Parsing error in PL/SQL

Hello,
I have some problem in parsing Mircrosoft OpenXML file using Oracle 10g Release2 XML Parser for PL/SQL.
I use dbms_xmlparser, dbms_xmldom, dbms_xslprocessor packages
OpenXML file use "w:" as namespace, so every element has prefix "w:" like
<w:wordDocument ..>
<w:body..>
<w:p..>
<w:r..>
<w:t..>
My job is to read OpenXML file inside PL/SQL code, parse it, and load it into the corresponding table.
Here is my PL/SQL code.
DECLARE
doc dbms_xmldom.DOMDocument;
node_list dbms_xmldom.DOMNodeList;
l_node dbms_xmldom.DOMNode;
one_element dbms_xmldom.DOMElement;
PROCEDURE p (msg VARCHAR2, nl BOOLEAN := TRUE) IS
BEGIN
dbms_output.put_line (msg);
IF nl THEN dbms_output.put(CHR(10)); END IF;
END:
BEGIN
doc := xml.parse(BFileName('XML_DIR','OpenXMLFile.xml'));
node_list := xpath.selectNodes(doc, '/w:wordDocument/w:body/w:p/w:r/w:t');
FOR j IN 0..dbms_xmldom.getLength(node_list)-1
LOOP
p( xpath.valueOf(dbms_xmldom.item(node_list, j), '.'), nl=>FALSE );
END LOOP;
Here is the error message.
ERROR at line 1:
ORA-31011: XML parsing failed
ORA-19202: Error occurred in XML processing
LPX-00601: Invalid token in: '/w:wordDocument/w:body/w:p/w:r/w:t
[starts-with(., "!")]'
ORA-06512: at "XDB.DBMS_XSLPROCESSOR", line 900
ORA-06512: at "XDB.DBMS_XSLPROCESSOR", line 928
ORA-06512: at "SYSTEM.XPATH", line 173
ORA-06512: at "SYSTEM.XPATH", line 179
ORA-06512: at line 38
I really don't know why I got this error message nor how to solve it. If I remove "w:" manually within open xml file, then parsing works well. I guess XML parser for PL/SQL doesn't recognize ":" or maybe doesn't support namespace?
My question is
1. In oracle 10g release2, XML Parser for PL/SQL can recognize ":" in the element name? or does it support namespace? If not, is there any workaround for solving this problem?
2. How can I make XML Parser recognize ":" in the element name in the xml file or How can I declare namespace in the PL/SQL code so that PL/SQL xml parser can recognize namespace like "w:"?
In fact, I don't use XML DB and what I want to do is just to load XML file into the relational table and some parts of whole XML file will be inserted into the CLOB in the table.
Should I really use XML DB to do the above job?
Any comment or suggestions will be greatly appreciated.

This works correctly. I added prefixes to your extract path. (I had to add the xmlns:xsi to your root node also.)
declare
-- Local variables here
   doc_in       dbms_xmldom.DOMDocument;
   aNodeList    dbms_xmldom.DOMNodeList;
begin
-- Test statements here
doc_in := dbms_xmldom.newdomdocument(
'<?xml version="1.0" encoding="UTF-8"?>' ||
'<ap:Collection xmlns:ap="http://www.abc.com/ap" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.abc.com/ap template.xsd"> ' ||
'<ap:info>' ||
'<ap:data name="Barbie" age="3">' ||
'</ap:data>' ||
'</ap:info>' ||
'</ap:Collection>');
aNodeList := dbms_xslprocessor.selectNodes(dbms_xmldom.makeNode(doc_in),
                                             '/ap:Collection/ap:info',
                                             'xmlns:ap="http://www.abc.com/ap"');
dbms_output.put_line('length of aNodeList = '|| dbms_xmldom.getLength(aNodeList) );
end;

PL/SQL + XML with Excel report format?

Dear all,
I am a new beginner in XML Publisher. For the EBS11i, I can use PL/SQL with http scripts to generate excel report format.
The following code will include in store procedure:
>
begin
owa_util.mime_header(ccontent_type => 'application/vnd.ms-excel');
     htp.htmlopen;
     htp.headopen;
     htp.print( '<STYLE>' );
htp.print( '' );
     htp.print( '</STYLE>' );
     htp.headclose;
     htp.bodyopen;
     htp.para;
     htp.strong( '<U>' || 'Sample Report Name'|| '</U>');
     htp.para;
htp.tablerowopen;
     htp.tabledata('<DIV align="left">' || rec_main2.vendor_name || '</DIV>',cattributes => ' class="xl24" width="190"');
htp.tablerowclose
>
How can I do that in R12?
Please advice.

We currently do not support SQL aliasing of directories. This
is causing your errors.
Oracle XML Team
http://technet.oracle.com
Oracle Technology Network
Frank Hubeny (guest) wrote:
: I think I got past this point by first creating a directory
: under sys and then granting read privileges to owner of the
: domsample procedure (in my case the this user is called "xml").
: create directory xml as 'e:\web\xml';
: grant read on directory xml to xml;
: Then the call becomes (I think)
: exec domsample ('XML','family.xml','test.err')
: However, I am getting the following error:
: ERROR at line 1:
: ORA-20100: Error occurred while parsing: XML/err.log
: ORA-06512: at "XML.XMLPARSER", line 43
: ORA-06512: at "XML.XMLPARSER", line 120
: ORA-06512: at "XML.DOMSAMPLE", line 80
: ORA-06512: at line 1
: The readme says "It is necessary for the user running
: this sample to have been granted the appropriate security
: priveleges to read and write from a file on the file
: system." I am not sure what the "write" grant would be.
: And so I also set utl_file_dir so that it pointed to
: the directory. But somehow I don't think that utl_file is
: needed in this context. In any case, it appears I cannot write
: to the err.log file or find it.
: Brad Douglass (guest) wrote:
: : I'm receiving the following error when I use the domsample
: : procedure supplied with the PL/SQL XML parser:
: : SQL> exec domsample('e:\web\xml','test.xml','test.err');
: : begin domsample('e:\web\xml','test.xml','test.err'); end;
: : ERROR at line 1:
: : ORA-20101: Error occurred while accessing a file or URL:
: unknown
: : protocol: file
: : ORA-06512: at "XML.XMLPARSER", line 46
: : ORA-06512: at "XML.XMLPARSER", line 164
: : ORA-06512: at "XML.DOMSAMPLE", line 77
: : ORA-06512: at line 1
: : UTL_FILE doesn't have any problems with the file.
: : Any ideas?
null

C XML Parser - Writing XML

Is there an easier way to write the contents of an XML document (built up in memory using DOM API calls) to a string, other than reading document back and using native C code to output each element. Perhaps call to PL/SQL XML Parser function?

Starting with 2.0.4, we have printStream() and printBuffer().

PLSQL XML parser modified examples

Attachments: "1|type=application/octet-stream|desc=my personal domsample|file=domsample.sql|";"2|t
pe=text/xml|desc=garment xml file|file=Garment.xml|";"3|type=text/xml|desc=garment xml file|file=G
rment.xml|";"4|type=text/xml|desc=an xml file example|22661|file=Garment.xml|"
PLSQL XML parser modified examples
Hello Fine Folks at Oracle xml team
Here i am again from Copenhagen Denmark.
To day i would like to question/discuss the following things
ItFs all about the PL/SQL XML parser which i have installed on
my OracleServer 8i Enterprice
Question 1
If i want to modify DOMSAMPLE.sql or write my own program, i now
have very few choices
Where to look for intelligent answers to my questions.
1. My only source here is the package body for XMLPARSER which i
have installed under
the user SCOTT/TIGER. I made a dump of all that code to the
printer
So thats my xml
manual together with the domsample.sql
QUESTION . Where do i find programmers reference etc. etc. etc.
Question 2
2. Many of the *.xml examples here on my platform have a design
where elements have no attributes;
But still they are "placeholders" for elemt values.
Here is the DomSample source part iFam referring to
-- get all elements
nl := xmlparser.getElementsByTagName(doc, '*');
len1 := xmlparser.getLength(nl);
-- loop through elements
for j in 0..len1-1 loop
n := xmlparser.item(nl, j);
e := xmlparser.makeElement(n);
dbms_output.put_line(xmlparser.getTagName(e)

Joergen Hoeyer (guest) wrote:
: PLSQL XML parser modified examples
: Hello Fine Folks at Oracle xml team
: Here i am again from Copenhagen Denmark.
: To day i would like to question/discuss the following things
: ItFs all about the PL/SQL XML parser which i have installed on
: my OracleServer 8i Enterprice
: Question 1
: If i want to modify DOMSAMPLE.sql or write my own program, i
now
: have very few choices
: Where to look for intelligent answers to my questions.
: 1. My only source here is the package body for XMLPARSER which
i
: have installed under
: the user SCOTT/TIGER. I made a dump of all that code to the
: printer
: So thats my xml
: manual together with the domsample.sql
: QUESTION . Where do i find programmers reference etc. etc. etc.
: Question 2
: 2. Many of the *.xml examples here on my platform have a
design
: where elements have no attributes;
: But still they are "placeholders" for elemt values.
: Here is the DomSample source part iFam referring to
: -- get all elements
: nl := xmlparser.getElementsByTagName(doc, '*');
: len1 := xmlparser.getLength(nl);
: -- loop through elements
: for j in 0..len1-1 loop
: n := xmlparser.item(nl, j);
: e := xmlparser.makeElement(n);
: dbms_output.put_line(xmlparser.getTagName(e)

Loading XML parser for PL/SQL

I am working my way thru 'Building Oracle XML Applications' by Steve Muench.
I am getting a problem when I try to install the XML parser for PL/SQL
The following errors occur when I try to do
loadjava -v -r -u xmlbook/xmlbook xmlparserv2.jar
initialization complete
loading : oracle/xml/parser/v2/XMLByteReader
creating : oracle/xml/parser/v2/XMLByteReader
Error while creating class oracle/xml/parser/v2/XMLByteReader
ORA-29545: badly formed class: User has attempted to load a class (oracle.xml.parser.v2.XMLByteReader) into a restricted package. Permission can be granted using dbms_java.grant_permission(<user>, LoadClassInPackage...
loading : oracle/xml/parser/v2/PrintDriver
creating : oracle/xml/parser/v2/PrintDriver
Error while creating class oracle/xml/parser/v2/PrintDriver
ORA-29545: badly formed class: User has attempted to load a class (oracle.xml.parser.v2.PrintDriver) into a restricted package. Permission can be granted using dbms_java.grant_permission(<user>, LoadClassInPackage...
resolving: oracle/xml/parser/v2/PrintDriver
Error while resolving class oracle/xml/parser/v2/PrintDriver
ORA-04043: object /a065289c_PrintDriver does not exist
resolving: org/w3c/dom/html/HTMLAnchorElement
Error while resolving class org/w3c/dom/html/HTMLAnchorElement
ORA-04043: object /564607d_HTMLAnchorElement does not exist
About 20 classes get loaded correctly. All the rest get ORA-29545 or ORA-04043 errors.
I expect the ORA-04043 errors are a result of the earlier errors.
The documentation seems to indicate that there is no need to do
dbms_java.grant_permission to load into your own schema.
I have NT4 (sp6)
Oracle 8.1.7
xmlparserv2.jar dated 24/8/2001 17:01 size 1,177,259
xmlparserv2_2027.jar gives the same errors.
Any help would be appreciated.
null

Was it definitely xmlparsev2.jar that you had to load?
I recently started going through some of these examples as well and found that the standard xml parser was there but that I needed to load the xml parser for PL/SQL. I did this using loadjava from a subdirectory within the xdk directory and everything worked fine.

PL/SQL XML Parser

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