Problem in retrieving LONG(of Oracle) column in Java String Object

Hi,
I wrote some codes to fetch some columns into a String array(two dimentional), one of the column is long (in Oracle database)...whenever I try to get the value into the array..its showing
java.sql.SQLException: Stream has already been closed
Some where I read that I've to fetch the long column first..now this was my general function...the resultset can have more than one rows..in that case, how can I retrieve the long data first. Now next time(for the second row) in the loop..it'll get LONG(as it'll be first to retrive) after some normal column(from the first column)...again it can show the same problem.
Is there any concrete solution for that? Please help me to sort this out.
Thanks in advance.
---Sourav

Hi Gurus,
Please reply..
Thanks and Regards,
MSORA

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I found a great solution to limitation of excel when reading cells with a lot of text and when firts rows has no data!
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aaaa

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You are in unchartered territory. But check the common "gotcha" and
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-- cj

Failed to retrieve long data for column

Hi,
I am using SSDT 2010 to load Excel 2010 spreadsheets to a 2012 SQL DB. In my package I have a foreach loop and loading a couple of thousand spreadsheets. Issue I'm facing, is that about 30 or so of these spreadsheets are failing with message above.
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Embedded Single Quote in SQL Column truncates Java String

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Database side:
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<%
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%>
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You really need to read up on [SQL Injection|http://en.wikipedia.org/wiki/SQL_injection] and [XSS/Cross-Site Scripting|http://de.wikipedia.org/wiki/Cross-Site_Scripting]. Both present massive security problems and your code seems prone to easily producing both.
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PROBLEM DESCRIPTION --->
JDOQL FILTER ON A FIELD OF "java.lang.Object" TYPE, NOT WORKING.
HELP REQUESTED WITH SUGGESTIONS OR POINTERS TO THE CORRECT SOLUTION.
Deatiled Problem :=
Environment :=
Kodo version 2.4.1 (on Windows 2000).
J2SDK 1.3.1_06 (on Windows 2000).
Database:= MySQL 3.23.55 (on Windows 2000).
Java Class Hierarchy Example:=
SuperPersistentObject
|__ LevelOneDescendant
|__ LevelTwoDescendant
|__ LastDescendant
Procedures Followed :=
Java class named "LastDescendant" is enhanced and persisted in the
database.
The field "m_value" is of java type "java.lang.Object" and is
represented as a "blob" in the database.
Aadequate data is pumped in the field "m_value" (Data of Type
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retrieved using following JDO specific code :=
SUCCESSFUL EXAMPLE :=
Extent extent= PersistentManager.getExtent
(com.name.project.LastDescendant.class, false);
String m_queryFilter = "";
Query query = PersistentManager.getQuery(extent, m_queryFilter);
Collection m_resultset = (Collection)query.execute();
The above code returns all the available "LastDescendant" objects
persisted in the DB. Post Load, The value in the field "m_value" of
all the retrieved "LastDescendant" objects, is testeded successfully
and found to be matching to the expected values.
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Query query = PersistentManager.getQuery(extent, m_queryFilter);
Collection m_resultset = (Collection)query.execute();
NO "LastDescendant" OBJECTS RETRIEVED, the Collection "m_resultset" is
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Tried every other way, using "declareImports()"/ "declareParameters()"/
"declareVariables()" etc. Tried TypeCasting the m_value field to Integer,
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Actual Classes :=
public class SuperPersistentObject implements java.io.Serializable {
protected String appKey;
public class LevelOneDescendant extends SuperPersistentObject {
protected SuperPersistentObject m_classRef;
public class LevelTwoDescendant extends LevelOneDescendant {
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<class name="SuperPersistentObject"
identity-type="application"
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</class>
<class name="LevelOneDescendant" identity-type="application"
persistence-capable-superclass =
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</class>
<class name="LevelTwoDescendant" identity-type="application"
persistence-capable-superclass =
"com.name.project.LevelOneDescendant">
<field name="m_value">
<extension vendor-name="kodo" key="data-column" value="VALUE"/>
</field>
</class>
<class name="LastDescendant" identity-type="application"
persistence-capable-superclass="com.name.project.LevelTwoDescendant">
</class>
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javax.jdo.PersistenceManagerFactoryClass =
com.solarmetric.kodo.impl.jdbc.JDBCPersistenceManagerFactory
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javax.jdo.option.ConnectionPassword= <xxxxxx>
javax.jdo.option.ConnectionDriverName= com.mysql.jdbc.Driver
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Please see below link
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Hi,
I've been connecting to Oracle 11g Server (not sure exact version) using Oracle 10.1.0 Client and O10 Oracle 10g driver. Everything was ok.
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pgoel wrote:
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out.println("ERROR : " + e);
//web.xml file
<?xml version="1.0" encoding="ISO-8859-1"?>

<web-app>
<servlet>
<servlet-name>Hello</servlet-name>
<servlet-class>DataRetrieving</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Hello</servlet-name>
<url-pattern>/DataRetrieval</url-pattern>
</servlet-mapping>
</web-app>
while running the servlet , i am unable to retrieve the data
The error message i am getting is
A program for connecting oracle database
ERROR : java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
after running the servlet.
what could be the problem?

import java.io.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class myserv extends HttpServlet
public void doGet(HttpServletRequest req,HttpServletResponse res)throws ServletException,IOException
res.setContentType("text/html");
PrintWriter pw=res.getwriter();
pw.println("Connecting data base");
     try
     Class.forName("oracle.jdbc.driver.OracleDriver");
     Connection con=Drivermanager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl","scott","tiger");
     Stamtenet st=con.createStament();
     Resultset rs=con.executeQurey("select * from emp");
     while(rs.next())
     rs.getInt("empno")+" "+rs.getDouble("sal"));
     }catch(Exception e)
}

Problem in retrieving LONG(of Oracle) column in Java String Object

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