ORA-12505, TNS:listener does not currently know of SID given in connect descriptor

Question

I'm very new on Database subjects and trying to do some beginner stuff with connecting from Netbeans. but when i test my connection i'm facing with some error (i searched this error but couldnt understand anything). i installed Oracle 10g Express Database Edition and downloaded ojdbc6.jar for Oracle Thin. this my simple code just for test the driver version;

import java.sql.*;
import oracle.jdbc.pool.OracleDataSource;

    class JDBCVersion
    {
      public static void main (String args[]) throws SQLException
      {
        OracleDataSource ods = new OracleDataSource();
        ods.setURL("jdbc:oracle:thin:@localhost:1521:XE [hr on HR]");
        Connection conn = ods.getConnection();

        // Create Oracle DatabaseMetaData object
        DatabaseMetaData meta = conn.getMetaData();

        // gets driver info:
        System.out.println("JDBC driver version is " + meta.getDriverVersion());
      }
    }

and i get

Exception in thread "main" java.sql.SQLException: Listener refused the connection with the following error:
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor

as i said i am newbie about this database stuff and i will be very glad if you can help with explaining. thanks anyway

Answer 1

Here is the code on how to connect to your Oracle Database:

public class JDBCVersion {

  public static void main(String[] args) {
    try {
        Class.forName("oracle.jdbc.OracleDriver");
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
        return;
    }
    Connection connection = null;
    try {
        connection = DriverManager.getConnection(
                "jdbc:oracle:thin:@localhost:1521:XE", "username",
                "password");
    } catch (SQLException e) {
        e.printStackTrace();
        return;

    }
}

Where username and password have to be changed accordingly. Also if you have installed Oracle 10g then the right version would be ojdbc14.jar.