JDBC/ODBC on linux?

I am using Dreamweaver UltraDev to make pages that have to connect with a database. I am making the pages in jsp. Do you know how I can run a JDBC driver on linux? I am not sure, but I think I may also need an ODBC driver running as well. I am using redhat 7.1, apache 1.3.20, JServ, and GnuJSP.

I am using Dreamweaver UltraDev to make pages that
have to connect with a database. I am making the pages
in jsp. Do you know how I can run a JDBC driver on
linux? The same way you would run it on any other platform. That is the beauty of JDBC.
I am not sure, but I think I may also need an
ODBC driver running as well. For what? What database are you running?
I am using redhat 7.1,
apache 1.3.20, JServ, and GnuJSP.Joseph Schlecht

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Null Pointer Exception using JDBC-ODBC bridge on Linux

Wonder if anyone can help me with this one?
I am attempting to use the JDBC-ODBC bridge on Fedora with J2SDK 1.4.2_04, however I am getting a NullPointerException whenever I get the connection. I can get the JDBC connection to work but it is a requirement that ODBC be used.
The code is as simple as it can get.
import java.sql.*;
public class TestClass
   public static void doConnection()
      try
           Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
           Connection cn = DriverManager.getConnection("jdbc:odbc:DB");
      catch (Exception e)
           e.printStackTrace();
   public static void main(String[] args)
      doConnection();
}Running this program using java -verbose TestClass I get the following output.
[Loaded sun.jdbc.odbc.JdbcOdbc from /usr/java/j2sdk1.4.2_04/jre/lib/rt.jar]
[Loaded java.lang.UnsatisfiedLinkError from /usr/java/j2sdk1.4.2_04/jre/lib/rt.jar]
[Loaded java.sql.SQLException from /usr/java/j2sdk1.4.2_04/jre/lib/rt.jar]
[Loaded java.sql.SQLWarning from /usr/java/j2sdk1.4.2_04/jre/lib/rt.jar]
java.lang.NullPointerException
[Loaded java.lang.StackTraceElement from /usr/java/j2sdk1.4.2_04/jre/lib/rt.jar]
at sun.jdbc.odbc.JdbcOdbcDriver.initialize(JdbcOdbcDriver.java:436)
at sun.jdbc.odbc.JdbcOdbcDriver.connect(JdbcOdbcDriver.java:153)
at java.sql.DriverManager.getConnection(DriverManager.java:512)
at java.sql.DriverManager.getConnection(DriverManager.java:193)
at TestClass.doConnection(TestClass.java:13)
at TestClass.main(TestClass.java:96)
[Loaded java.lang.Shutdown from /usr/java/j2sdk1.4.2_04/jre/lib/rt.jar]
[Loaded java.lang.Shutdown$Lock from /usr/java/j2sdk1.4.2_04/jre/lib/rt.jar]
The UnsatisfiedLinkError suggests to me that a library cannot be found, but I don't know what library.
As far as I know I have configured ODBC correctly. I can achieve connectivity to my database using other tools and I still get this same error irrespective of whether the DSN is valid or not.
I have installed the unixODBC rpm.
Any help/insite would be greatly appreciated.

This is the output of ldd. Everything appears to be resolved.
linux-gate.so.1 => (0x00cf5000)
libodbcinst.so => /usr/sybase/lib/libodbcinst.so (0x001d5000)
libjava.so => libjava.so (0x008af000)
libjvm.so => /usr/java/j2sdk1.4.2_04/jre/lib/i386/client/libjvm.so (0x002a7000)
libc.so.6 => /lib/i686/libc.so.6 (0x00d77000)
libdbtasks7.so => /usr/sybase/lib/libdbtasks7.so (0x00eb2000)
libdl.so.2 => /lib/libdl.so.2 (0x00111000)
libstdc++-libc6.2-2.so.3 => /usr/lib/libstdc++-libc6.2-2.so.3 (0x00115000)
libm.so.6 => /lib/i686/libm.so.6 (0x008fb000)
libverify.so => libverify.so (0x0016e000)
libnsl.so.1 => /lib/libnsl.so.1 (0x00180000)
libpthread.so.0 => /lib/i686/libpthread.so.0 (0x006d0000)
/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x00157000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00b75000)
The ODBC is a Sybase driver and is loaded from elsewhere. I will check for any known compatibility issues.

Connection to MySql in linux with jdbc odbc

I am trying to connect my Applet to a MySql database
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try
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THE Stack trace :
at sun.jdbc.odbc.JdbcOdbcDriver.initialize(Unknown Source)
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     at java.sql.DriverManager.getConnection(Unknown Source)
Please Helppp !!
Thanks in Advance,
Cheers,
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Hey Thanks for the quick Reply
Well ,
I have checked and "mycon" is the right name of the
DSN on the ODBCConfig.On the client machine? Not the server where the applet comes from but on the machine where it runs.
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ODI reading Excel via ODBC on Linux

I've got ODI loading data from Excel via ODBC with everything running on Windows, and it runs fine!
But will this work when I run ODI on a Linux platform? Will I have to buy some kind of ODBC driver for Excel under Linux? Has anyone done this before?
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A

There exists a native JDBC driver for excel, it is a sourcefourge project. This allows you to read excel data irrespective of platform through JDBC rather than having to use the JDBC/ODBC bridge.

Jdbc odbc on unixODBC

I am looking for some help with a problem I have been working on for a
few days now:
I need to set up on a Linux box an ODBC connection to mySQL.
To this end I have installed unixODBC and myODBC, and the tests work
fine. However, when I run a simple java proggy to this connection I get
the following error:
java.lang.NullPointerException
at sun.jdbc.odbc.JdbcOdbcDriver.initialize(JdbcOdbcDriver.java:435)
at sun.jdbc.odbc.JdbcOdbcDriver.connect(JdbcOdbcDriver.java:153)
at java.sql.DriverManager.getConnection(DriverManager.java:512)
at java.sql.DriverManager.getConnection(DriverManager.java:171)
at SelectFromPer.main(SelectFromPer.java:40)
This immplies to me that the dirver is loading ok...?
here's my code:
import java.sql.*;
class SelectFromPer {
public static void main(String argv[]) {
try {
// Load the JDBC-ODBC bridge
Class.forName ("sun.jdbc.odbc.JdbcOdbcDriver");
// specify the ODBC data source's URL
String url = "jdbc:odbc:myIMDB";
// connect
Connection con = DriverManager.getConnection(url,"UserIM","UserIM");
// create and execute a SELECT
Statement stmt = con.createStatement();
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("SELECT MSname,MCname,Minitials FROM Member");
System.out.println("Class is SelectFromPer\n");
// traverse through results
System.out.println("Found row:");
while (rs.next()) {
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String Surname = rs.getString(1);
String FirstName = rs.getString(2);
int Category = rs.getInt(3);
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System.out.print (" FirstName=" + FirstName);
System.out.print (" Category=" + Category);
System.out.print(" \n");
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stmt.close();
con.close();
} catch (java.lang.Exception ex) {
ex.printStackTrace();
thanks in advance for any help
lewis

Lewis Smith wrote:
I am looking for some help with a problem I have been working on for a
few days now:
I need to set up on a Linux box an ODBC connection to mySQL.
To this end I have installed unixODBC and myODBC, and the tests work
fine. However, when I run a simple java proggy to this connection I get
the following error:
java.lang.NullPointerException
at sun.jdbc.odbc.JdbcOdbcDriver.initialize(JdbcOdbcDriver.java:435)
at sun.jdbc.odbc.JdbcOdbcDriver.connect(JdbcOdbcDriver.java:153)
at java.sql.DriverManager.getConnection(DriverManager.java:512)
at java.sql.DriverManager.getConnection(DriverManager.java:171)
at SelectFromPer.main(SelectFromPer.java:40)
This immplies to me that the dirver is loading ok...?I hope you're not set on using the jdbc-odbc bridge with weblogic. We have documented
that we do not support the jdbc-odbc bridge because it is not threadsafe, and it has
many bugs, and is unsupported by it's authors.
Yes, the driver loaded OK, because the JdbcOdbcDriver class is in the stacktrace.
It is an example of a basic programming error that the driver would suffer a
null-pointer exception in response to a simple standard getConnection() call.
If you can find a real jdbc driver, it'll make your life easier. Check the documentation
for that driver. I suspect the exception comes from string processing of the URL,
where it expects more in the URL than there is...
Joe Weinstein at BEA
>
>
here's my code:
import java.sql.*;
class SelectFromPer {
public static void main(String argv[]) {
try {
// Load the JDBC-ODBC bridge
Class.forName ("sun.jdbc.odbc.JdbcOdbcDriver");
// specify the ODBC data source's URL
String url = "jdbc:odbc:myIMDB";
// connect
Connection con = DriverManager.getConnection(url,"UserIM","UserIM");
// create and execute a SELECT
Statement stmt = con.createStatement();
ResultSet rs = stmt.executeQuery
("SELECT MSname,MCname,Minitials FROM Member");
System.out.println("Class is SelectFromPer\n");
// traverse through results
System.out.println("Found row:");
while (rs.next()) {
// get current row values
String Surname = rs.getString(1);
String FirstName = rs.getString(2);
int Category = rs.getInt(3);
// print values
System.out.print (" Surname=" + Surname);
System.out.print (" FirstName=" + FirstName);
System.out.print (" Category=" + Category);
System.out.print(" \n");
// close statement and connection
stmt.close();
con.close();
} catch (java.lang.Exception ex) {
ex.printStackTrace();
thanks in advance for any help
lewis

Where can i find mysql Jdbc driver for linux

Hi all,
Can any one give urls to download mysql jdbc driver for linux.
And also for ODBC DRIVER FOR MYSQL ON LINUX.
Thanks

http://mmmysql.sourceforge.net/
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JDBC-ODBC bridge connection failure.

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I have previously successfully connected to an Access ODBC
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null

The error indicates that the bridge is making a call to the
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SELECT [...] FROM
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SQLState: null
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Here the code without all the rest of the class arround it:
// Module: SimpleSelect.java
// Description: Test program for ODBC API interface. This java application
// will connect to a JDBC driver, issue a select statement
// and display all result columns and rows
// Product: JDBC to ODBC Bridge
// Author: Karl Moss
// Date: February, 1996
// Copyright: 1990-1996 INTERSOLV, Inc.
// This software contains confidential and proprietary
// information of INTERSOLV, Inc.
public static void main1() {
String url   = "jdbc:odbc:SomeSystemDNS";
String query = "SELECT SomeSPSSColumn FROM 'SomeSPSSFileName'";
try {
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Thank you for your reply StuDerby!
Actually the above script was before, as you suggested, leaving the ResultSetTeype default. This did not work...
I am getting gray hair with SPSS - in terms of connectivity and "integratebility" none of their solutions offered is sufficient from my point of view.
Variable definitions can only be read by the slow API, data can only be read by Python or Microsoft Products... and if you want to combine both you are in big trouble. I can only assume that this is a company strategy to sell their Dimensions Platform to companies versus having companies developping their applications according to business needs.
Thanks again for any furthur suggestions and I hope, that some SPSS Developper will see this post!
Cheers!!

JDBC/ODBC on linux?

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