Problem XSQL

I am running NT/Ora816/iPortal3/apache 1.3.12 and execute xdk sample, and the problems are:
URL: http://servbackup/xsql/java/xsql/
1) XSQL-011: Error processing XSLT stylesheet: homecontent.xsl
XSL-1031: Variable not defined: 'cur'.
2) file jServ.log :
[24/10/2000 09:43:01:583 GMT-04:00] oracle.xml.xsql.XSQLServlet: init
[24/10/2000 09:45:22:436 GMT-04:00] page/Timing Out from FETCHING 15
[24/10/2000 09:45:22:436 GMT-04:00] page/Timeout occurred, label=15 url=http://SERVBACKUPpls/PORTAL/!PORTAL.wwpro_app_provider.execute_portlet
4) my xdk dir: d:\oracle\portal\xdk
tanks
null

thanks, Steven problem resolved,
i will be keeping in touch with you throug email, because I am in a project(University) that requires lots of support.
thanking you now JCAzogue
null

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Maximum Open Cursors Exceeded problem in XSQL

Hi,
We are processing an XSQL page by calling XSQLRequest.process() programatically within our application. Within the XSQL page there are several queries which involve multiple nested CURSOR expressions... when the query returns enough rows we are running into the error "ORA-00604: error occurred at recursive SQL level 1 ORA-01000: maximum open cursors exceeded".
When searching this forum I have seen many (old) postings regarding this error and a bug in the XDK... seems like it was some time ago, but while we set about improving the structure of our XSQL page (or increasing the max open cursor init parameter currently at 500 or both) can anyone confirm that this bug no longer exists?
Also, any general suggestions on working around this limit rather than increasing it? We have considered splitting up our queries into smaller queries (and merging the results via XSLT) and closing cursors during the session explicitly by issuing commits within the XSQL page... but any better ideas?
Thanks,
Bob

I have found this max open cursors problem to be related to Statement object not being closed. This presents a problem for the use of PreparedStatements, because they are only useful if you can keep them open and resuse them. However, in doing so, each iteration through the PreparedStatement creates another open cursor in the databse rather than reusing the previous one. A work around I discovered by reading about REF CURSORS and I use in JDBC is as follows:
Assuming a previously prepared PreparedStatement pstmt and a ResultSet rset-
while (rset.next()) {
rset.close();
// This line closes the cursor in the database
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Problem with xsql:query

Hi,
I'm having a problem with the following simple XSQL document:
<?xml version="1.0"?>
<xsql:query connection="xsqltest" xmlns:xsql="urn:oracle-xsql">
SELECT concat(concat(forename, ' '), surname) AS Name
, d.name AS Department
FROM emp, dept d
WHERE emp.dept_no = d.id
ORDER BY surname
</xsql:query>When I transform this using the command line xsql, it produces the following (as expected):
<?xml version = '1.0'?>
<ROWSET>
<ROW num="1">
<Name>Cindy Delight</Name>
<Department>Accounting</Department>
</ROW>
<ROW num="2">
<Name>Adrian Rue</Name>
<Department>Product Development</Department>
</ROW>
<ROW num="3">
<Name>Dwight Dweeb</Name>
<Department>Accounting</Department>
</ROW>
</ROWSET>However, when I access the same page through my browser, the output is:
<?xml version = '1.0'?>
<xsql:query>
SELECT concat(concat(forename, ' '), surname) AS Name
, d.name AS Department
FROM emp, dept d
WHERE emp.dept_no = d.id
ORDER BY surname
</xsql:query>(this is the same as the input document, except the namespace declaration has been stripped out, making the XML invalid).
I've tried including other xsql tags in the same document (e.g. xsql:include-xsql), these seem to work fine. Also, if I change the connect details, XSQL fails as expected, so it would appear xsql is being invoked by Tomcat (.xsql is mapped to the servlet), and XSQL successfully connecting to the database.
My setup is slightly unusual: I'm trying to use XSQL 1.0.4.1 with MySQL 3.23.32 using the mm.mysql 2.0.4 JDBC drivers. This is running on Tomcat 3.2.1 with JDK 1.3 (OJVM 1.2.330). But, since it works with the command line xsql, I'm at a loss as to why it's misbehaving through the servlet engine only... any ideas?
Steve

Hmm,
Even more confusing - the same .xsql document works fine with WebToGo - so I guess this is a Tomcat problem, somehow... Just can't understand why xsql:include-xsql works and xsql:query doesn't.
Steve

Problem in using XSQL-session and connecting database

Hello
Let me explain clearly. We have some data entry screens for which we want to use session with time out option. Normally in Servlet, we use to create a session with max age option. Then everytime the browser call the servlet we use to check for session.isnew(). If it is new session then we will forward the page to Relogin (because session is timed out) or we proced with further action.
In XSQLServlet, how will do this. Do I have to create my own servlet extended from XSQLServlet ? Override the Service method and write about the session part and call
super(). Here only I am getting confused. In servlet mapping we have given for every .XSQL call run the XSQLServlet. How will I override this ?
And also we have problem with user id and password. We don't want to use the same id (system id as defined in XSQLConfig.xml) for every database connection. We want to define only the connection information like SID, Server, Port number. But user id and password should be dynamic. How can I achieve this ?
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Lakshmi
null

You'll need to implement your own classes that implement the:
oracle.xml.xsql.XSQLConnectionManagerFactory
and
oracle.xml.xsql.XSQLConnectionManager
to change the way XSQL handles connections. Using this mechanism, you should be able to implement any alternative connection scheme you choose.
If you run into problems implementing these interfaces, give us a shout here in the forum.

XDK 9.0.2.0.C XSQL parameter visibility problem

Dear Steven,
I consider this as a serious bug:
When one set XSQL page or XSQL session page parameter it
become visible in page/request/session or otherwise only after
the following round trip to the client.
In other words, it is not present in the incoming XML to xslt to
process.
Thank you,
David

David,
I just re-tested with 9.0.2C and things are working as they
should. For example, the following XSQL page:
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="test.xsl"?>
<page xmlns:xsql="urn:oracle-xsql" connection="demo">
<xsql:set-page-param name="page-param" value="1"/>
<xsql:set-session-param name="sess-param" value="2"/>
<xsql:set-stylesheet-param name="sheet-param" value="3"/>
<xsql:include-param name="page-param"/>
<xsql:include-param name="sess-param"/>
</page>referencing the following stylesheet:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:param name="sheet-param"/>
<xsl:template match="/">
 <html><body>
 <xsl:value-of select="$sheet-param"/>
 <xsl:value-of select="/page/sess-param"/>
 <xsl:value-of select="/page/page-param"/>
 </body></html>
</xsl:template>
</xsl:stylesheet>shows an HTML page with the expected "321" the first request.
If you are talking about cookies, then you are correct that the
cookies you set this request are not visible until the next
request (which is the standard way cookies work), however, you
can use the new XSQL 9.0.2C feature to "see" the cookie value
immediately by adding the immediate="yes"] attribute to
your <xsql:set-cookie> action.
If I've misunderstood your problem, please post a testcase that
illustrates the issue. Thanks.

Include xsql problem with mulitbyte characters

I have an xml file containing chinese and korean UTF-8 that has a xsl applied to it then output NO PROBLEM.
Now I want to apply another xsl before passing on to the final xsl so I used include-xsql in the main xsql file.
Works fine as long as the source xml contains english.
Problem is that if I do this all the non-ascii characters are turned into ??????
So somewhere there must be a conversion being performed but the source is utf-8 and I though by default all xml stuff was utf-8 so where/why is the conversion happening and how can I avoid it.
Rob

This bug was fixed in XSQL 1.0.4.3, the latest production release that is part of the XDK for Java 8.1.7.1 download here on OTN.

Problem inserting into DB from XML using XSQL

Hi everyone!
I try to load an XML document into a DB table, for the moment i only get access to a MySQL DB server, but i hope to use ORACLE soon. My problem is the next one:
when i try to execute an insert query against the DB server it always fails, i get no problem doing another operation like select and so on. I have try in several ways:
1. From a XSQL page using the tags xsql:insert-request, in the case the error looks like:
Action xsql:insert-request
Message org.gjt.mm.mysql.jdbc2.Connection
2. I also have try the MoreoverIntoNews java examples, and the problem seem similar:
Exception in thread "main" oracle.xml.sql.OracleXMLSQLException:
org.gjt.mm.mysql.jdbc2.Connection
at oracle.xml.sql.dml.OracleXMLSave.saveXML(OracleXMLSave.java:1967)
at oracle.xml.sql.dml.OracleXMLSave.insertXML(OracleXMLSave.java:1060)
at MoreoverIntoNewsstory.main(MoreoverIntoNewsstory.java:43)
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I also have realize that when i remove from the CLASSPATH the file "classes12.zip" then i
get next exception:
java.lang.NoClassDefFoundError: oracle/sql/CLOB
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Thanks in advance.
Marcos.

Is there a solution to this problem? Does anyone have any suggestions?

Character Set Problem with XSQL

Hi!
I am using xsql:insert-request of the xsql-servlet. On NT everything works fine.But on Solaris I get with the same configuration (Oracle 8.1.7 XSQL-Servlet 1.0.4.0) and the same xsl and xsql Files I get the following Error:
Exception 'java.sql.SQLException:Non supported character set: oracle-character-set-46' encountered during processing ROW element 0All prior XML row changes were rolled back. in the XML document.
I want to load Data into an object-relational Table.
Has anyone of you had the same Problem? Has anybody a solution for this Problem. Today I tried different things wihtout any success.
Thanks a lot,
Harald

hi manidhar,
I am also facing the same problem.In my case the characters are getting garbled when it is passed to a javaScript function.
Did u find a solution.
If yes please post it.
thanks in advance

FOP and XSQL problem

Hi All
I am using XDK 10 and FOP 20.5, see my previous post - it all works fine.
However I have found a weird thing and that is that the .xsql file is executed twice when using FOP, but only once when using a normal XSLT stylesheet.
Anyone else noticed that?
TIA
Richard

I figured out the problem. The version of Acrobat Reader 6.0 that I am using seems to load the document again if it does not display properly the first time round. I have got XSQL file caching on, but I disabled caching on my browser. This effectively overrides the XSQL file caching of the xsql servlet.
Regards
Richard

Xsql setup problem. 'Cannot acquire a database connection to process page.'

This is probably a really basic problem, but I am getting the following error when I try to use the xsql demos.
Oracle XDK Java 9.2.0.2.0 Production
XSQL-007: Cannot acquire a database connection to process page.
Io exception: Connection refused(DESCRIPTION=(TMP=)(VSNNUM=150999297)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4))))
I really don't know what I am doing wrong, so any help would be appreciated.
My jserv.properties file:
wrapper.classpath=s:\xdk_java\lib\xsu12.jar
wrapper.classpath=s:\xdk_java\lib\oraclexsql.jar
wrapper.classpath=s:\orant\jdbc\lib\classes12.zip
wrapper.classpath=s:\xdk_java\lib\xmlparserv2.jar
wrapper.classpath=s:\orant\xdk\admin
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Adrian

hehehhe
I had the connection wrong in the XSQLConfig.xml file.
It's all working nicely now.
Ade

Character problems with xsql:include-xsql reparse="yes"

I have a problem retrieving XML-fragments from CLOB columns.
Danish ISO-8859-1 characters (aelig, oslash, aring) are returned as "?" from Apache/Jserv when using xsql:include-xsql reparse="yes".
My platform is Solaris9/Oracle-9.2.0.2/XDK-9.2.0.4.
Database characterset is we8iso8859p1.
I'm using the Apache/Jserv that comes with Oracle 9.2.0.1.
Steps to reproduce problem:
-- Table data:
create table tab1 (id number,clob_col clob);
insert into tab1 values(1, '<x>fxe</x>');
/*inserted characters are aelig(230), oslash(248), aring(229)*/
commit;
-- test.xsql:
<?xml version="1.0" encoding="ISO-8859-1"?>
<testdata xmlns:xsql="urn:oracle-xsql" connection="pnrtest">
<xsql:include-xsql reparse="yes" href="inc.xsql" />
</testdata>
-- inc.xsql:
<?xml version="1.0" encoding="ISO-8859-1"?>
<?xml-stylesheet type="text/xsl" href="unquote_clob_col.xsl"?>
<xsql:query
xmlns:xsql="urn:oracle-xsql"
connection="pnrtest"
tag-case="lower"
>
select clob_col
from tab1
</xsql:query>
-- unquote_clob_col.xsl:
<xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0">
<xsl:output method="xml" indent="yes" omit-xml-declaration="no" encoding="ISO-8859-1"/
<xsl:include href="identity.xsl"/>
<xsl:template match="clob_col">
<clob_col>
<xsl:value-of select="." disable-output-escaping="yes"/>
</clob_col>
</xsl:template>
</xsl:stylesheet>
-- identity.xsl:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

<xsl:template match="node()|@*">

<xsl:copy>

<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
-- Notes:
Running test.xsql works fine with XSQL command-line, but FAILS through Apache/Jserv (danish characters are returned as "?").
inc.xsql works fine through XSQL command-line and Apache/Jserv, problem only happens with xsql:include-xsql reparse="yes" (e.g. test.xsql).
xsql:include-xml works fine, but I cannot use this, bca. in my real business case I'm selecting more than one row from the database.
I've checked and double-checked my jserv.properties several times, and believes it to be correct.
The xsql:include-xsql reparse="yes" technique works fine in our Solaris9/Oracle-8.1.7/iAS-1.0.2.2 environment.
Any suggestions ?
-- Peter ([email protected])

If I put the following line in jserv.properties:
wrapper.env=LANG=en_US.ISO8859-1
the problem with xsql:include-xsql reparse="yes" seems to go away.
Really strange, since Oracle products in my experience normally only uses NLS_LANG, not LANG.
Also, we're accessing several databases with different charactersets from the same ApacheJserv installation, so I don't understand why LANG (or NLS_LANG) should be set to a particular value.
Can anybody explain ?
-- Peter

XSQL Demo Problems

I am trying to install the XSQL Demo (FAQ), but I'm having a few problems -
Problem 1:
grant exceute on ctx_ddl to xdkdemo
ERROR at line 1:
ORA-00990: missing or invalid privilege
Problem 2:
When creating the MakeGlossary procedure, I receive the following errors:
Errors for PROCEDURE MAKEGLOSSARY:
LINE/COL ERROR
8/8 PLS-00201: identifier 'XSLPROCESSOR.PROCESSOR' must be declared
8/8 PL/SQL: Item ignored
9/6 PLS-00201: identifier 'XSLPROCESSOR.STYLESHEET' must be declared
9/6 PL/SQL: Item ignored
31/4 PLS-00320: the declaration of the type of this expression is
incomplete or malformed ............
Any ideas what I am doing wrong?
I'm running Oracle9i and I have verified that the Parser and XML SQL Utility are installed.

Please double-check your JDK. This error is common if you are using a JDK that is 1.1.7 or earlier where there were bugs in the UTF-8 characterset conversion code.
1.1.8 and 1.2.2 should work fine.
Try a: java -version
to see what version you're running.

My Apache Jserve Classpath for XSQL Problems

Operating System
Architecture x86
Name Windows NT
Version 5.0
Java Virtual Machine
JVM Compiler symcjit
Vendor Sun Microsystems Inc.
Class Path D:\apache\ApacheJServ\ApacheJServ.jar D:\Program Files\Oracle\JDeveloper 3.0\lib\servlet.jar D:\Oracle_XDK\servlet\xsql\lib\oraclexsql.jar D:\Oracle_XDK\servlet\xsql\lib\classes111.zip D:\Oracle_XDK\servlet\xsql\lib\xmlparserv2.jar D:\Oracle_XDK\servlet\xsql\lib\oraclexmlsql.jar D:\Oracle_XDK\servlet\xsql\lib
Class Format Version 46.0
Version 1.2.2
General Configurations
Logging Enabled ( D:\apache\ApacheJServ\logs\jserv.log )
Allowed IP Addresses [127.0.0.1/127.0.0.1]
Maximum Connections 5
Authentication Disabled
Bindaddress localhost/127.0.0.1
Challenge Size 5
Port 8007
Back to menu
Copyright (c) 1997-99 The Java Apache Project.
All rights reserved.
null

I believe the problem is with the directory in your CLASSPATH which has spaces in it "Program Files" and "Oracle JDeveloper".
Apache JServ may not be handling the path names in a way that spaces are allowed.

Problem testing XSQL Servlet, XSQL-0007

Hi,
I'm testing the XSQL Servlet, as a lot of people do. I installed
it on Apache Web Server with JRUN servlet engine, following the
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message, when I try to run helloworld.xslq:
Oracle XSQL Servlet Error
XSQL-0007: XML Parsing error on requested page
<2,1>: Expected EOF
I checked it several times but it seems to be right, exactly as
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I read here that other people (SHankar) had the same problem, but
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: : Oracle XML Team wrote:
: : : I presume by XML source code, you are referring to
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are
: : : using. Check out that section of the installation
: : instructions.
Please, tell me what can I do to start testing it, since I can
test nothing, it does not work.
Regards,
Esteban
null

Oracle XML Team wrote:
: The only thing that can cause
: this error is if the page you
: are requesting is not a well-formed
: XML document.
: Oracle XML Team
: http://technet.oracle.com
: Oracle Technology Network
I'm requesting the page that you provide as a demo:
helloworld.xsql
I checked it and it is a well-formed XML document.
Anyway, other examples that you provide with the xsqlservlet zip
file don't work either.
null

Problems installing latest XSQL Servlet

After following the instructions for installing XSQL servlet for Apache with Jserv, I get the following error with a simple sql query.
Oracle XSQL Servlet Page Processor 9.0.1.0.0 (Production)
XSQL-017: Unexpected Error Occurred
java.lang.AbstractMethodError: oracle/jdbc/driver/OracleResultSet.getStatement
at oracle.xml.sql.dataset.OracleXMLDataSetExtJdbc.(OracleXMLDataSetExtJdbc.java:117)
at oracle.xml.sql.core.OracleXMLConvert.initObject(OracleXMLConvert.java:345)
at oracle.xml.sql.core.OracleXMLConvert.getXML(OracleXMLConvert.java:823)
at oracle.xml.sql.query.OracleXMLQuery.getXMLDOM(OracleXMLQuery.java:364)
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at oracle.xml.xsql.XSQLDocHandler.getDocument(XSQLDocHandler.java:132)
at oracle.xml.xsql.XSQLPageProcessor.process(XSQLPageProcessor.java:134)
at oracle.xml.xsql.XSQLServlet.doGet(XSQLServlet.java:60)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:499)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:588)
at org.apache.jserv.JServConnection.processRequest(JServConnection.java:314)
at org.apache.jserv.JServConnection.run(JServConnection.java:188)
at java.lang.Thread.run(Thread.java:475)
Can anyone help

I have included the following libs as described in the installation notes
ie in the jserv.properties file I have
# Oracle XSQL
# Oracle XML SQL Utility (XSU)
wrapper.classpath=C:\xsql\lib\sax2.jar
wrapper.classpath=/usr/local/src/xdk/lib/xsu12.jar
# Oracle XSQL Servlet
wrapper.classpath=/usr/local/src/xdk/lib/oraclexsql.jar
# Oracle JDBC (8.1.6) -- JDBC 2.0 driver
wrapper.classpath=/usr/local/src/xdk/lib/classes12.zip
# Oracle XML Parser V2 (with XSLT Engine)
wrapper.classpath=/usr/local/src/xdk/lib/xmlparserv2.jar
# XSQLConfig.xml File location
wrapper.classpath=/usr/local/src/xdk/xdk/admin
# FOR Apache FOP Generation, Add
# wrapper.classpath=C:\xsql\lib\xsqlserializers.jar
# wrapper.classpath=FOPHOME/fop_bin_0_14_0.jar
# wrapper.classpath=FOPHOME/lib/w3c.jar
And in the httpd.conf file I have
Alias /xsql/ "/usr/local/src/xdk/xdk/"
Also in the xml config file
<connection name="promptl">
<username>******</username>
<password>******</password>
<dburl>jdbc:oracle:thin:@192.****:1521:8C</dburl>
<driver>oracle.jdbc.driver.OracleDriver</driver>
</connection>
I think the problem may be with my jdbc file???
<BLOCKQUOTE>quote:<HR>Originally posted by Jinyu Wang ([email protected]):
Have include all the libs like:
# Oracle XSQL Servlet
wrapper.classpath=/private/orahome/lib/oraclexsql.jar
# Oracle JDBC
wrapper.classpath=/private/orahome/jdbc/lib/classes12.zip
# Oracle XML Parser V2 (with XSLT Engine)
wrapper.classpath=/private/orahome/lib/xmlparserv2.jar
# Oracle XML SQL Components for Java
wrapper.classpath=/private/orahome/rdbms/jlib/xsu12.jar
Especially xsu12.jar?<HR></BLOCKQUOTE>
null

Problem XSQL

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