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oracle and jdbc-odbc bridge

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I am facing a problem in connecting this simple program
to the oracle8 database.
I am trying
to connect to the oracle database (which is residing
on my local machine as of now) through a JDBC-ODBC
bridge, and then execute the "emp" table of the "scott" user
---> what i am still not familiar is how to pass the connection string in
the ODBC data source administrator dialog box?
--> what kind of entry i should make
in TNSnames.ora file, to connect to the local database where the "emp"
table is situated?
--> how do i know the host and Port no for the database on which the
"emp" table resides?

import java.io.*;
import java.sql.*;
public class CreateCoffees1 {
public static void main(String args[]) throws IOException {
String url = "jdbc:odbc:testing";
Connection con;
Statement stmt;

try {
/*we are creating a connection to the database using the JDBC-Bridge Driver*/
catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
try {
con = DriverManager.getConnection(url,"scott","tiger");
stmt = con.createStatement();
ResultSet srs = stmt.executeQuery("SELECT * FROM emp");
while (srs.next()) {
String name = srs.getString("ENAME");
String job = srs.getString("JOB");
System.out.println(name + " " + job);

} catch(SQLException ex) {
System.err.println("SQLException hai bhai: " + ex.getMessage());

thanks in advance.
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if it is for localhost there is no need to make in entries in tnsnames.ora file.
simply creating dsn is enough.
goto control panel-click odbc32..icon-in the dialog press add-
select the oracledriver-enter dsn...etc..you will find it very easy.
i hope this is what you wanted
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