Generating xml from oracle 10g with BLOB image

Hello All,
I have employee table with id(primary key), firstname,lastname
and I have portrait table with id(secondary key from employee table),image (blob)
portrait table store images of the employees which are in the employee table.
I want to generate following xml output
<rowset>
<id> </id>
<firstname> </firstname>
<lastname> </lastname>
<portrait>base64formatted string containing image of the employee for the particular id specified in the id tag</portrait>
</rowset>
and save this xml as id.xml into a particular folder in the c drive and generate such xmls for each and every row of the emplyee table...
e.g. if i have 200 emplyees with id as 1 ,2 ,.....,200 and their respective portraits into portrait table; then I want to save these as separate xml files with the names 1.xml , 2.xml , .....200.xml inside a folder say : C:\temp...
Any help is highly appreciated
Edited by: user1030398 on Sep 28, 2010 12:01 PM
Edited by: user1030398 on Sep 28, 2010 12:02 PM

I was going to write up a longer answer, but then I realized this post contains pretty much all you need
http://www.liberidu.com/blog/?p=365
I like using XMLElement/XMLForest to build the XML as it gives you the most control.
In the first example on Marco's website, you would just use dbms_xslprocessor.clob2file to write each file out to disk with a CURSOR FOR loop instead of doing a single OPEN/FETCH/CLOSE. The cursor would return two columns, employee.id and the generated XML. The filename would be based on the "id" column returned by the CURSOR.
Assumption: The machine that Oracle resides on has the "C:\temp" directory that you want to write to. You cannot use this method to right files onto a client machine.
Hope that gets you started.

Similar Messages

Generating XML from Oracle DB

While generating XML data from Oracle relational database, using the following SQL statement,
SELECT XMLElement("Date", VioDate)
FROM TableName
WHERE VioId= 10;
I am getting the result as :
[][][][]<Date>2010-03-22</Date>
There four small squares coming before the xml element.
Can anyone let me know why I am getting this and how to correct it.
I am using Oracle SQL Developer version 1.2.1 Build MAIN - 32.13 to run the above statement.
Regards

Hi,
Probably an issue about how the client "implicitly" converts an XMLType to display its lob content.
You may use getStringVal() or getClobVal() methods to get the content :
SQL*Plus: Release 10.1.0.4.2 - Production on Lun. Mars 29 16:28:39 2010
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connecté à :
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> select xmlelement("TEST", 'ABC') from dual;
XMLELEMENT("TEST",'ABC')
SQL> select xmlelement("TEST", 'ABC').getclobval() from dual;
XMLELEMENT("TEST",'ABC').GETCLOBVAL()
<TEST>ABC</TEST>HTH

Generating xml from oracle table

Hi,
I want to generate xml form an oracle table and using sql developer, oracle express 10g, xdk forler is also unzipped under oracle express folder, still getting following error: code used
var g_clob clob;
declare
     l_ctx dbms_xmlquery.ctxHandle;
     l_clob clob;
    begin
      l_ctx := dbms_xmlquery.newContext('select * from scott.emp');
      dbms_lob.createtemporary(:g_clob,true,dbms_lob.session);
      :g_clob := dbms_xmlquery.getXml(l_ctx);
    end;
    /ORA-06550: line 2, column 14:
PLS-00201: identifier 'DBMS_XMLQUERY.CTXHANDLE' must be declared
Thanks in advance

Hi,
DBMS_XMLQUERY is a wrapper for methods from the Java class "oracle.xml.sql.query.OracleXMLStaticQuery".
The problem is that Oracle 10g XE doesn't have a JVM, so you can't use this package.
Use DBMS_XMLGEN instead, it provides similar functionalities and is more efficient (C-based) :
SQL> var g_clob clob
SQL> DECLARE
2    l_ctx    dbms_xmlgen.ctxHandle;
3 BEGIN
4    l_ctx := dbms_xmlgen.newContext('select * from scott.emp');
5    :g_clob := dbms_xmlgen.getXML(l_ctx);
6    dbms_xmlgen.closeContext(l_ctx);
7 END;
8 /
PL/SQL procedure successfully completed.
SQL> set long 5000
SQL> set pages 1000
SQL> print g_clob
G_CLOB
<?xml version="1.0"?>
<ROWSET>
<ROW>
<EMPNO>7369</EMPNO>
<ENAME>SMITH</ENAME>
<JOB>CLERK</JOB>
<MGR>7902</MGR>
<HIREDATE>17/12/80</HIREDATE>
<SAL>800</SAL>
<DEPTNO>20</DEPTNO>
</ROW>
<ROW>
<EMPNO>7499</EMPNO>
<ENAME>ALLEN</ENAME>
<JOB>SALESMAN</JOB>
<MGR>7698</MGR>
<HIREDATE>20/02/81</HIREDATE>
<SAL>1600</SAL>
<COMM>300</COMM>
<DEPTNO>30</DEPTNO>
</ROW>
<ROW>
<EMPNO>7521</EMPNO>
<ENAME>WARD</ENAME>
<JOB>SALESMAN</JOB>
<MGR>7698</MGR>
<HIREDATE>22/02/81</HIREDATE>
<SAL>1250</SAL>
<COMM>500</COMM>
<DEPTNO>30</DEPTNO>
</ROW>
<ROW>
<EMPNO>7566</EMPNO>
<ENAME>JONES</ENAME>
<JOB>MANAGER</JOB>
<MGR>7839</MGR>
<HIREDATE>02/04/81</HIREDATE>
<SAL>2975</SAL>
<DEPTNO>20</DEPTNO>
</ROW>
<ROW>
<EMPNO>7654</EMPNO>
<ENAME>MARTIN</ENAME>
<JOB>SALESMAN</JOB>
<MGR>7698</MGR>
<HIREDATE>28/09/81</HIREDATE>
<SAL>1250</SAL>
<COMM>1400</COMM>
<DEPTNO>30</DEPTNO>
</ROW>
<ROW>
<EMPNO>7698</EMPNO>
<ENAME>BLAKE</ENAME>
<JOB>MANAGER</JOB>
<MGR>7839</MGR>
<HIREDATE>01/05/81</HIREDATE>
<SAL>2850</SAL>
<DEPTNO>30</DEPTNO>
</ROW>
<ROW>
<EMPNO>7782</EMPNO>
<ENAME>CLARK</ENAME>
<JOB>MANAGER</JOB>
<MGR>7839</MGR>
<HIREDATE>09/06/81</HIREDATE>
<SAL>2450</SAL>
<DEPTNO>10</DEPTNO>
</ROW>
<ROW>
<EMPNO>7839</EMPNO>
<ENAME>KING</ENAME>
<JOB>PRESIDENT</JOB>
<HIREDATE>17/11/81</HIREDATE>
<SAL>5000</SAL>
<DEPTNO>10</DEPTNO>
</ROW>
<ROW>
<EMPNO>7844</EMPNO>
<ENAME>TURNER</ENAME>
<JOB>SALESMAN</JOB>
<MGR>7698</MGR>
<HIREDATE>08/09/81</HIREDATE>
<SAL>1500</SAL>
<COMM>0</COMM>
<DEPTNO>30</DEPTNO>
</ROW>
<ROW>
<EMPNO>7900</EMPNO>
<ENAME>JAMES</ENAME>
<JOB>CLERK</JOB>
<MGR>7698</MGR>
<HIREDATE>03/12/81</HIREDATE>
<SAL>950</SAL>
<DEPTNO>30</DEPTNO>
</ROW>
<ROW>
<EMPNO>7902</EMPNO>
<ENAME>FORD</ENAME>
<JOB>ANALYST</JOB>
<MGR>7566</MGR>
<HIREDATE>03/12/81</HIREDATE>
<SAL>3000</SAL>
<DEPTNO>20</DEPTNO>
</ROW>
<ROW>
<EMPNO>7934</EMPNO>
<ENAME>MILLER</ENAME>
<JOB>CLERK</JOB>
<MGR>7782</MGR>
<HIREDATE>23/01/82</HIREDATE>
<SAL>1300</SAL>
<DEPTNO>10</DEPTNO>
</ROW>
</ROWSET>Or, using SQL/XML functions :
SELECT XMLElement("ROWSET",
         XMLAgg(
           XMLElement("ROW",
             XMLForest(empno, ename, job, mgr, hiredate, sal, comm, deptno)
       ).getClobVal()
FROM scott.emp
;

Generate XML from Oracle Table Data

Hi All,
I am new to this network. I am also new to oracle XML package. I want a help for the below query.
CREATE TABLE EMP(ID NUMBER PRIMARY KEY, NAME VARCHAR2(10), PHONE NUMBER);
INSERT INTO EMP(ID,NAME,PHONE) VALUES (11,'Joy',1234);
INSERT INTO EMP(ID,NAME,PHONE) VALUES (22,'Mike',5678);
INSERT INTO EMP(ID,NAME,PHONE) VALUES (33,'Jason',NULL);
COMMIT;
I want to export the EMP table data in a XML file with the below format.
Required Output:
<?xml version="1.0" encoding="UTF-8"?><STATICDATA><EMP><ID>11</ID><NAME>Joy</NAME></EMP></STATICDATA>
<?xml version="1.0" encoding="UTF-8"?><STATICDATA><EMP><ID>22</ID><NAME>Mike</NAME></EMP></STATICDATA>
<?xml version="1.0" encoding="UTF-8"?><STATICDATA><EMP><ID>33</ID><NAME>Jason</NAME></EMP></STATICDATA>
I have used some XML functions and have written the below query.
select XMLROOT(XMLELEMENT(staticdata,XMLELEMENT(EMP,XMLELEMENT(ID,ID),XMLELEMENT(NAME,NAME))), version '1.0" encoding="UTF-8') xml FROM EMP;
output of my query:
<?xml version="1.0" encoding="UTF-8"?>
<STATICDATA>
<EMP>
<ID>11</ID>
<NAME>Joy</NAME>
</EMP>
</STATICDATA>
<?xml version="1.0" encoding="UTF-8"?>
<STATICDATA>
<EMP>
<ID>22</ID>
<NAME>Mike</NAME>
</EMP>
</STATICDATA>
<?xml version="1.0" encoding="UTF-8"?>
<STATICDATA>
<EMP>
<ID>33</ID>
<NAME>Jason</NAME>
</EMP>
</STATICDATA>
But i want the out as the required output above. every record in a single line. can any one help me in achieving the required output. also can i export all the columns of the table by some thing like select * from the table in XML file ?
Thanks,
Sartaj

user13683418 wrote:
Hi All,
I am new to this network. I am also new to oracle XML package. I want a help for the below query.
CREATE TABLE EMP(ID NUMBER PRIMARY KEY, NAME VARCHAR2(10), PHONE NUMBER);
INSERT INTO EMP(ID,NAME,PHONE) VALUES (11,'Joy',1234);
INSERT INTO EMP(ID,NAME,PHONE) VALUES (22,'Mike',5678);
INSERT INTO EMP(ID,NAME,PHONE) VALUES (33,'Jason',NULL);
COMMIT;
I want to export the EMP table data in a XML file with the below format.
Required Output:
<?xml version="1.0" encoding="UTF-8"?><STATICDATA><EMP><ID>11</ID><NAME>Joy</NAME></EMP></STATICDATA>
<?xml version="1.0" encoding="UTF-8"?><STATICDATA><EMP><ID>22</ID><NAME>Mike</NAME></EMP></STATICDATA>
<?xml version="1.0" encoding="UTF-8"?><STATICDATA><EMP><ID>33</ID><NAME>Jason</NAME></EMP></STATICDATA>
I have used some XML functions and have written the below query.
select XMLROOT(XMLELEMENT(staticdata,XMLELEMENT(EMP,XMLELEMENT(ID,ID),XMLELEMENT(NAME,NAME))), version '1.0" encoding="UTF-8') xml FROM EMP;
output of my query:
<?xml version="1.0" encoding="UTF-8"?>
<STATICDATA>
<EMP>
<ID>11</ID>
<NAME>Joy</NAME>
</EMP>
</STATICDATA>
<?xml version="1.0" encoding="UTF-8"?>
<STATICDATA>
<EMP>
<ID>22</ID>
<NAME>Mike</NAME>
</EMP>
</STATICDATA>
<?xml version="1.0" encoding="UTF-8"?>
<STATICDATA>
<EMP>
<ID>33</ID>
<NAME>Jason</NAME>
</EMP>
</STATICDATA>
But i want the out as the required output above. every record in a single line.Why?
Some things output XML all as one stream, some things naturally display it structured. It doesn't matter as the XML is still the same because by it's very nature it is a structured data definition. Anything that reads XML will be able to read it whether it's on one line (streamed) or structured.
also can i export all the columns of the table by some thing like select * from the table in XML file ?A couple of ways of exporting XML to a file...
-- DBMS_XSLPROCESSOR.clob2file
-- outputs a clob to a file
DECLARE
   ctx   DBMS_XMLGEN.ctxtype;
BEGIN
   ctx := DBMS_XMLGEN.newcontext ('select * from emp');
   DBMS_XSLPROCESSOR.clob2file (DBMS_XMLGEN.getxml (ctx), 'TEMP', 'emp.xml');
   DBMS_XMLGEN.closecontext (ctx);
END;
PL/SQL procedure successfully completed.or
..snip..
v_xml                 XMLTYPE;
v_doc                 XMLDOM.DOMDocument;
v_dir                 VARCHAR2(2000);
v_file                VARCHAR2(2000);
BEGIN
v_xml := ... populate with XML ...;
v_dir := 'TEST_DIR'; -- directory object name (in UPPER CASE)
v_file := 'myfile.xml';
v_doc := DBMS_XMLDOM.NEWDOMDOCUMENT(v_xml);
DBMS_XMLDOM.WRITETOFILE(v_doc, v_dir||'\'||v_file, 'UTF-8');
DBMS_XMLDOM.FREEDOCUMENT(v_doc);
..snip..

Generating xml from oracle-data

In our company we have to export customer-data to xml using a predefined format (which we cannot change).
This xml will subsequently be used to import the data into another system.
I'm not that familiar with XML. Most of the work can be done using dbms_xmlgen which is pretty simple and straightforward to use
There is one type of element I cannot place correctly in the specification
The use of foreign keys. For instance
A employee has a foreign key to a bussiness unit that should be written down in the xml
when using "normal" dbms_xmlgen the tag would be like
<bussinessunit>"bisut100"</bussinessunit>
But the specification specifies the following format
<bussinessunit bussinesunitId="bisut100"/>
Any idea how to get this using dbms_xmlgen?
Or if not possible with dbms_xmlgen how could this easily be achieved?

Thanks for the reply and the challenge is more to generate the closing tag exactly like in the specification
The following is a snippet of what is required
-<employee>
<id>2</id>
<empno>102105<empno>
-<name>
<firstname>Tom</firstname>
<lastname>Hanks</lastname>
</name>
<bussinessunit bussinesunitId="bisut100"/>
<employee>
-<employee>
<id>3</id>
I wonder how to achieve the line
<bussinessunit bussinesunitId="bisut100"/>
I tried using
DBMS_XMLGEN.setNullHandling(qryCtx, DBMS_XMLGEN.EMPTY_TAG);
and then the construction
qryCtx := DBMS_XMLGEN.newContext(
' select id, custom0 bussinessunit , company_id "@bussinessunitId", lname
from tpt_employees t
where rownum < 2
and custom0 is null');
Unfortunately, the resulting xml-line
<BUSSINESSUNIT bussinessunitId = "1" <BUSSINESSUNIT/>
is not the xml I had hoped for (it's not valid as well)

GetBlob Error During fetching of Images from Oracle 10g

Dear Sir,
By using getBlob Function ,i am getting following error:"Unsupportable action has performed".
I am using oracle 10g.I am using java code to retrieve image from Oracle 10g.
So plz help me by giving full code with explaination.
Thankyou.
Yours Obedient
Dipesh Kumar

I seriously doubt Oracle would write error messages with such atrocious English.
So it's almost certainly an error from either your own code or code you're calling in some library or part of the application you're not mentioning that noone here except you has knowledge of.
Ergo, we're not going to be able to help you unless you provide a lot more information.
And no, we're not going to write your code for you.

How can I send e-mail with attachment from oracle 10g?

How can I send email with attachment from oracle 10g?

hi you can achieve the same thing from database tier of unix.

Generating XML from database

I'm a total newbie in XML DB and need advice on generating XML from database.
The situation is the following: there is a legacy web application which uses an XML document as a configuration file. This document conforms to some well-defined schema. For instance:
<config>
     <title value="TITLE" />
     <subtitle value="SUBTITLE" />
     <style url="default.css" />
     <widgets>
          <widget id="1" opened="true" />
          <widget id="2" opened="false" />
     </widgets>
</config>
It contains portions of static data which are common for all users as well as dynamic personal data.
Dynamic data comes from two sources:
1) security considerations (for instance, not all widgets are available for some users) - thus the "master" configuration content must be filtered, but not otherwise modified;
2) user preferences (for instance, user can set widget2 to be opened by default) - thus values of some attributes must be different for each user. When the user saves her preferences, the entire document with new values is posted back to server.
We want to try to store user preferences, apply security and generate personalized configuration documents using XML DB.
So we need advice on storage models and generation procedures - which should be more efficient and easy to support or extend.
Please note, that there is no requirement to actually store data as XML.
Thanks in advance!
P.S.: Sorry for the incomplete initial post.
Edited by: WxD on 27.09.2010 11:45

Hi,
See this link for more details
http://www.stanford.edu/dept/itss/docs/oracle/10g/appdev.101/b10790/xdb13gen.htm

How to migrate a table from ORACLE 10g to 8i

have table named 'liuxg_tab_01' in 10g.
This morning I exported this table using 'exp' and then tried to imp it into 8i, I failed.
After a while, I created a database link named 'ctf' in 8i which connected to 10g. I issued 'create table test as selct * from liuxg_tab_01@ctf',it returns 'ORA-01723'.
Then I extraced the DDL of 'liuxg_tab_01' from 10g with QUEST TAOD, it's:
CREATE TABLE LIUXG_TAB_01
OWNER VARCHAR2(30 BYTE),
OBJECT_NAME VARCHAR2(30 BYTE),
SUBOBJECT_NAME VARCHAR2(30 BYTE),
OBJECT_ID NUMBER,
DATA_OBJECT_ID NUMBER,
OBJECT_TYPE VARCHAR2(19 BYTE),
CREATED DATE,
LAST_DDL_TIME DATE,
TIMESTAMP VARCHAR2(19 BYTE),
STATUS VARCHAR2(7 BYTE),
TEMPORARY VARCHAR2(1 BYTE),
GENERATED VARCHAR2(1 BYTE),
SECONDARY VARCHAR2(1 BYTE)
But I can not create a table using the upper DDL in 8i if I do not wipe off those "BYTES".
After creation of the table using the upper DDL without those 'BYTES', I sucessfully executed 'insert into LIUXG_TAB_01 select * from liuxg_tab_01@ctf'.
Anyone has a better method to move a table from ORACLE 10g to 8i?

1) The particular version of 8i and 10g in use here would be useful. I'm not sure that Oracle supports database links between any version of 8i and any version of 10g, though, so you're probably lucky that it worked as well as it did.
10g 10.1.0.3.0 and 8i 8.1.7.0.0
2) What version of the export utility did you use? You would need to use the 8i version to generate the dump file to have any chance of working, not the 10g verion.
I use the 'exp' provided with 10g 10.1.0.3.0 and 'imp' with 8i 8.1.7.0.0. I have tried to export data directly from 10g 10.1.0.3.0 using 'exp' provided with 8i 8.1.7.0.0. Failed.
3) Why? Since 8i is desupported, there isn't a lot of call for tools to move data from supported releases to unsupported releases.
We have an 8i DB which is still porivding insentive services. We just wanna migrate some tales from 10g to it.
FYI, NLS_LENGTH_SEMANTICS was introduced in 9i, so it's no suprise that 8i objected to the BYTE keyword in the DDL.
What's FYI :P
Another option would be to generate a CSV file of the data from 10g and use SQL*Loader to load it into 8i. Not sure this would be any easier, though.
Justin
Message was edited by:
user510846

Generating XML from SQL queries and saving to a xml file?

Hi there,
I was wondering if somebody could help with regards to the following:
Generating XML from SQL queries and saving to a xml file?
We want to have a stored procedure(PL/SQL) that accepts an order number as an input parameter(the procedure
is accessed by our software on the client machine).
Using this order number we do a couple of SQL queries.
My first question: What would be our best option to convert the result of the
queries to xml?
Second Question: Once the XML has been generated, how do we save that XML to a file?
(The XML file is going to be saved on the file system of the server that
the database is running on.)
Now our procedure will also have a output parameter which returns the filename to us. eg. Order1001.xml
Our software on the client machine will then ftp this XML file(based on the output parameter[filename]) to
the client hard drive.
Any information would be greatly appreciated.
Thanking you,
Francois

Hi
Here is an example of some code that i am using on Oracle 817.
The create_file procedure is the one that creates the file.
The orher procedures are utility procedures that can be used with any XML file.
PROCEDURE create_file_with_root(po_xmldoc OUT xmldom.DOMDocument,
pi_root_tag IN VARCHAR2,
                                        po_root_element OUT xmldom.domelement,
                                        po_root_node OUT xmldom.domnode,
                                        pi_doctype_url IN VARCHAR2) IS
xmldoc xmldom.DOMDocument;
root xmldom.domnode;
root_node xmldom.domnode;
root_element xmldom.domelement;
record_node xmldom.domnode;
newelenode xmldom.DOMNode;
BEGIN
xmldoc := xmldom.newDOMDocument;
xmldom.setVersion(xmldoc, '1.0');
xmldom.setDoctype(xmldoc, pi_root_tag, pi_doctype_url,'');
-- Create the root --
root := xmldom.makeNode(xmldoc);
-- Create the root element in the file --
create_element_and_append(xmldoc, pi_root_tag, root, root_element, root_node);
po_xmldoc := xmldoc;
po_root_node := root_node;
po_root_element := root_element;
END create_file_with_root;
PROCEDURE create_element_and_append(pi_xmldoc IN OUT xmldom.DOMDocument,
pi_element_name IN VARCHAR2,
                                        pi_parent_node IN xmldom.domnode,
                                        po_new_element OUT xmldom.domelement,
                                        po_new_node OUT xmldom.domnode) IS
element xmldom.domelement;
child_node xmldom.domnode;
newelenode xmldom.DOMNode;
BEGIN
element := xmldom.createElement(pi_xmldoc, pi_element_name);
child_node := xmldom.makeNode(element);
-- Append the new node to the parent --
newelenode := xmldom.appendchild(pi_parent_node, child_node);
po_new_node := child_node;
po_new_element := element;
END create_element_and_append;
FUNCTION create_text_element(pio_xmldoc IN OUT xmldom.DOMDocument, pi_element_name IN VARCHAR2,
pi_element_data IN VARCHAR2, pi_parent_node IN xmldom.domnode) RETURN xmldom.domnode IS
parent_node xmldom.domnode;
child_node xmldom.domnode;
child_element xmldom.domelement;
newelenode xmldom.DOMNode;
textele xmldom.DOMText;
compnode xmldom.DOMNode;
BEGIN
create_element_and_append(pio_xmldoc, pi_element_name, pi_parent_node, child_element, child_node);
parent_node := child_node;
-- Create a text node --
textele := xmldom.createTextNode(pio_xmldoc, pi_element_data);
child_node := xmldom.makeNode(textele);
-- Link the text node to the new node --
compnode := xmldom.appendChild(parent_node, child_node);
RETURN newelenode;
END create_text_element;
PROCEDURE create_file IS
xmldoc xmldom.DOMDocument;
root_node xmldom.domnode;
xml_doctype xmldom.DOMDocumentType;
root_element xmldom.domelement;
record_element xmldom.domelement;
record_node xmldom.domnode;
parent_node xmldom.domnode;
child_node xmldom.domnode;
newelenode xmldom.DOMNode;
textele xmldom.DOMText;
compnode xmldom.DOMNode;
BEGIN
xmldoc := xmldom.newDOMDocument;
xmldom.setVersion(xmldoc, '1.0');
create_file_with_root(xmldoc, 'root', root_element, root_node, 'test.dtd');
xmldom.setAttribute(root_element, 'interface_type', 'EXCHANGE_RATES');
-- Create the record element in the file --
create_element_and_append(xmldoc, 'record', root_node, record_element, record_node);
parent_node := create_text_element(xmldoc, 'title', 'Mr', record_node);
parent_node := create_text_element(xmldoc, 'name', 'Joe', record_node);
parent_node := create_text_element(xmldoc,'surname', 'Blogs', record_node);
-- Create the record element in the file --
create_element_and_append(xmldoc, 'record', root_node, record_element, record_node);
parent_node := create_text_element(xmldoc, 'title', 'Mrs', record_node);
parent_node := create_text_element(xmldoc, 'name', 'A', record_node);
parent_node := create_text_element(xmldoc, 'surname', 'B', record_node);
-- write the newly created dom document into the buffer assuming it is less than 32K
xmldom.writeTofile(xmldoc, 'c:\laiki\willow_data\test.xml');
EXCEPTION
WHEN xmldom.INDEX_SIZE_ERR THEN
RAISE_APPLICATION_ERROR(-20120, 'Index Size error');
WHEN xmldom.DOMSTRING_SIZE_ERR THEN
RAISE_APPLICATION_ERROR(-20120, 'String Size error');
WHEN xmldom.HIERARCHY_REQUEST_ERR THEN
RAISE_APPLICATION_ERROR(-20120, 'Hierarchy request error');
WHEN xmldom.WRONG_DOCUMENT_ERR THEN
RAISE_APPLICATION_ERROR(-20120, 'Wrong doc error');
WHEN xmldom.INVALID_CHARACTER_ERR THEN
RAISE_APPLICATION_ERROR(-20120, 'Invalid Char error');
WHEN xmldom.NO_DATA_ALLOWED_ERR THEN
RAISE_APPLICATION_ERROR(-20120, 'Nod data allowed error');
WHEN xmldom.NO_MODIFICATION_ALLOWED_ERR THEN
RAISE_APPLICATION_ERROR(-20120, 'No mod allowed error');
WHEN xmldom.NOT_FOUND_ERR THEN
RAISE_APPLICATION_ERROR(-20120, 'Not found error');
WHEN xmldom.NOT_SUPPORTED_ERR THEN
RAISE_APPLICATION_ERROR(-20120, 'Not supported error');
WHEN xmldom.INUSE_ATTRIBUTE_ERR THEN
RAISE_APPLICATION_ERROR(-20120, 'In use attr error');
WHEN OTHERS THEN
dbms_output.put_line('exception occured' || SQLCODE || SUBSTR(SQLERRM, 1, 100));
END create_file;

Creating XML from Oracle Tables

Would it be possible to post me a snapshot of the ODI Flow diagram for an Oracle to XML conversion? Does the staging area have to be on the Target (XML)? What KMs & CM should be used? Can the XML be written straight back to an .xml file? What should the XML Schema look like?
These are the KMs I use: LKM-SQL to SQL; IKM-SQL Incremental Update; CKM-SQL.
My flow is straight from source (oracle) to target (xml), with staging area on target (doesn't feel right).
My Oracle Dataserver & Schema work fine. Not sure about the XML dataserver setup though - I think this is where the problem lies. These are my JDBC settings:
- com.sunopsis.jdbc.driver.xml.SnpsXmlDriver
- jdbc:snps:xml?f=E:\Oracle ODI\Member.xsd
I am evaluating ODI for a client and I wanted to throw together a quick demo showing how easily ODI can generate XML from any source. I know this is the case as I understand the concept of ODI's components - just haven't had time to read manuals thoroughly.
Many thanks for your help,
Steve

Hello,
1. Try to test the connection to the XML dataserver.
2. Create a model and reverse-engineer this dataserver. You'll see what the XML structure is mapped to immediately.
3. Integrate data to this model (using standard KM targeting "SQL").
You can put the staging area on the Oracle source or in the XML driver if you want. Both solutions will work.
just haven't had time to read manuals thoroughly.I think you should quickly read the "Sunopsis ODI with... XML" section in the manual.
It is not very long and very helpful. Have also a quick look at the XML driver documentation.
Regards,
-FX

Why it's so inefficient to generate XML from SQL queries?

I am learning to use Oracle9i XML DB to generate XML document using SQL queries. According to the document, there are multiple ways to do it (SQLX, DBMS_XMLGEN, SYS_XMLGEN, XSU). I am using SQLX to do it, but find it's so inefficient. Could someone point out what could be the problem?
I generate XML from TPC-H database, using the query as shown below. The indexes and primary key/foreign keys are created and specified. The system is Pentium IV 2GHz, Linux 2.4.18 with 512MB memory and 1GB swap. With database size 5MB, it spends about 300 seconds (TKPROF result) to generate the XML document. But for 10MB TPCH database, I cannot get the xml document after a long time. I find that all almost physical memory are used up by it. Therefore I stop it.
It seems that nested-loop join is used to evaluate the query, therefore it's very inefficient. I don't know whether there is a efficient way to do it.
Wish to get your help. Thank you very much!
Chengkai Li
===================================================================================================================
SELECT XMLELEMENT (
"region",
XMLATTRIBUTES ( r_regionkey AS "regionkey", r_name AS "name", r_comment AS "comment"),
(SELECT XMLAGG(
XMLELEMENT (
"nation",
XMLATTRIBUTES ( n_nationkey AS "nationkey", n_name AS "name", n_regionkey AS "regionkey", n_comment AS "comment"),
XMLConcat ((SELECT XMLAGG(XMLELEMENT (
"supplier",
XMLATTRIBUTES ( s_suppkey AS "suppkey", s_name AS "name", s_address AS "address", s_nationkey AS "nationkey", s_phone AS "phone", s_acctbal AS "acctbal", s_comment AS "comment"),
(SELECT XMLAGG(XMLELEMENT (
"part",
XMLATTRIBUTES ( p_partkey AS "partkey", p_name AS "name", p_mfgr AS "mfgr", p_brand AS "brand", p_type AS "type", p_size AS "size", p_container AS "container", p_retailprice AS "retailprice", p_comment AS "comment", ps_availqty AS "ps_availqty", ps_supplycost AS "ps_supplycost", ps_comment AS "ps_comment")))
FROM PART p, PARTSUPP ps
WHERE ps.ps_partkey = p.p_partkey
AND ps.ps_suppkey = s.s_suppkey
FROM SUPPLIER s
WHERE s.s_nationkey = n.n_nationkey
(SELECT XMLAGG(XMLELEMENT(
"customer",
XMLATTRIBUTES ( c_custkey AS "custkey", c_name AS "name", c_address AS "address", c_nationkey AS "nationkey", c_phone AS "phone", c_acctbal AS "acctbal", c_mktsegment AS "mktsegment", c_comment AS "comment"),
(SELECT XMLAGG(XMLELEMENT (
"orders",
XMLATTRIBUTES ( o_orderkey AS "orderkey", o_custkey AS "custkey", o_orderstatus AS "orderstatus", o_totalprice AS "totalprice", o_orderdate AS "orderdate", o_orderpriority AS "orderpriority", o_clerk AS "clerk", o_shippriority AS "shippriority", o_comment AS "ps_comment"),
(SELECT XMLAGG(XMLELEMENT (
"lineitem",
XMLATTRIBUTES ( l_orderkey AS "orderkey", l_partkey AS "partkey", l_suppkey AS "suppkey", l_linenumber AS "linenumber", l_quantity AS "quantity", l_extendedprice AS "extendedprice", l_discount AS "discount", l_tax AS "tax", l_returnflag AS "returnflag", l_linestatus AS "linestatus", l_shipdate AS "shipdate", l_commitdate AS "commitdate", l_receiptdate AS "receiptdate", l_shipinstruct AS "shipinstruct", l_shipmode AS "shipmode", l_comment AS "comment")
FROM LINEITEM l
WHERE l.l_orderkey = o.o_orderkey
FROM ORDERS o
WHERE o.o_custkey = c.c_custkey
FROM CUSTOMER c
WHERE c.c_nationkey = n.n_nationkey
FROM NATION n
WHERE n.n_regionkey = r.r_regionkey
FROM REGION r;

Tim,
Oracle Reports was the orginal way to do this in an Oracle Apps environment. However, the XML Publisher team built a tool called data templates to do this as well. You can read several articles on how to use data templates on the XMLP blog. Here's the first arcticle in a series: http://blogs.oracle.com/xmlpublisher/2006/11/08#a127.
Bryan

Retrieve data from a large table from ORACLE 10g

I am working with a Microsoft Visual Studio Project that requires to retrieve data from a large table from Oracle 10g database and export the data into the hard drive.
The problem here is that I am not able to connect to the database directly because of license issue but I can use a third party API to retrieve data from the database. This API has sufficient previllege/license permission on to the database to perform retrieval of data. So, I am not able to use DTS/SSIS or other tool to import data from the database directly connecting to it.
Here my approach is...first retrieve the data using the API into a .net DataTable and then dump the records from it into the hard drive in a specific format (might be in Excel file/ another SQL server database).
When I try to retrieve the data from a large table having over 13 lacs records (3-4 GB) in a data table using the visual studio project, I get an Out of memory exception.
But is there any better way to retrieve the records chunk by chunk and do the export without loosing the state of the data in the table?
Any help on this problem will be highly appriciated.
Thanks in advance...
-Jahedur Rahman
Edited by: Jahedur on May 16, 2010 11:42 PM

Girish...Thanks for your reply...But I am sorry for the confusions. Let me explain that...
1."export the data into another media into the hard drive."
What does it mean by this line i.e. another media into hard drive???
ANS: Sorry...I just want to write the data in a file or in a table in SQL server database.
2."I am not able to connect to the database directly because of license issue"
huh?? I never heard this question that a user is not able to connect the db because of license. What error / message you are getting?
ANS: My company uses a 3rd party application that uses ORACLE 10g. And my compnay is licensed to use the 3rd party application (APP+Database is a package) and did not purchased ORACLE license to use directly. So I will not connect to the database directly.
3.I am not sure which API is you are talking about, but i am running an application of the visual studio data grid or similar kind of controls; in which i can select (select query) as many rows as i needed; no issue.
ANS: This API is provided by the 3rd party application vendor. I can pass a query to it and it returns a datatable.
4."better way to retrieve the records chunk by chunk and do the export without loosing the state of the data in the table?"
ANS: As I get a system error (out of memory) when I select all rows in a datatable at a time, I wanted to retrieve the data in multiple phases.
E.g: 1 to 20,000 records in 1st phase
20,001 to 40,000 records in 2nd phase
40,001 to ...... records in 3nd phase
and so on...
Please let me know if this does not clarify your confusions... :)
Thanks...
-Jahedur Rahman
Edited by: user13114507 on May 12, 2010 11:28 PM

How to install Oracle 10g with its grid functionality on Linux?

Well, I thought changing the subject line might help to convey the meaning of what I want better. Here's my earlier post from a few hours earlier.
Hi,
I need carry out TPC-C benchmarking test for Oracle 10g (using one, two and four servers; basically using the grid in case of multiple servers). I have installed oracle 10g (with default options) on all the four servers, but beyond that I have no idea as to how can I invoke the grid option in order to carry out the tests-by my statement, I mean do I need to choose grid option while installing Oracle or is it the case that I specify the grid option in the code that I write for carrying out the tests. The OS is LInux (Scientific Linux).
An unrelated problem-one of the servers is 64 bit while others are 32 bit, and proper versions of oracle have been installed. Neglecting the obvious fact that this will make comparisons difficult does anyone anticipate any other problem?
Many Thanks!
Steve
*******************************************************************************************************

Do you think that the installation of RAC can be done
in a week? yes, as long as you know what you are doing and can catch the concept quickly and good at following instructions.
Moreover, we do not have a cluster-all we
have are four servers that are separate. Do you know
if the name Real Application Clusters implies that
the servers have to be in a cluster?
The basic idea of RAC is all these hosts need to share same set of storage. The most popular such storage are SAN and NAS.
An example of building RAC on linux
http://www.oracle.com/technology/pub/articles/hunter_rac10gr2_iscsi.html

Porting from Oracle 10g AS to Oracle 11g Weblogic server

Hi,
I am trying to port J2EE applicatin from Oracle 10g AS to Oracle 11g Weblogic Server. I have jsp files which contains sql code embedded to fetch data from the DB. The components used in this application are Java, JSP, Servlets and Stateless session beans.
I have a commonjar which is used to create DB Connection manager and other common stuff which is present inside web-inf/lib. My application is packaged as an ear and which contains the war and different ejb-project.jar files. When the Stateless bean is trying to call the ConnectionManager class, which is present inside the commonjar inside web-inf/lib, I get InvocationTargetException. When I debugged in Eclipse, I see that that inside ejb the reference ConnectionManager, the variable cannot be resolved. So I guess at runtime, ejb is not able to locate ConnectionManager Class.
I tried to copy this jar to APP-INF/lib and the same jar is present inside web-inf/lib as well. In that case what happens is the jsp fails with the exception ConnectionManager cannot be resolved.
How can I make the ejb work by keeping the commonjar inside web-inf/lib alone.
Any help or suggestions?
Thanks
Raj

The classloader hierarchy in WLS looks like this (arrows denote inheritance direction):
Java bootstrap classloader <- Java CLASSPATH classloader <- WLS $DOMAIN_HOME/lib classloader <- Application (e.g., EAR) classloader <- web app classloader <- single JSP classloader
The Connection Manager is loaded by the web app classloader while the EJBs are loaded by the application classloader so the EJBs have no visibility to the classes loaded by the child (web app) classloader.
The simplest fix might be to move the Connection Manager jar file to the EAR file's APP-INF/lib directory.
One word of caution though, you need to be using WebLogic Server's Data Sources and JDBC connection pooling to make sure that you correct transactional behavior if the application is doing any sort of JTA transaction (regardless of whether the JTA transactions are using XA or not...).
Hope this helps,
Robert

Generating xml from oracle 10g with BLOB image

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