the following code is inserting values in the my sql database but i want to insert the data into oracle database , i want what changes i have to make in the following code...

import java.io.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
import java.lang.String;
import java.sql.Connection; import javax.servlet.RequestDispatcher;

import java.sql.Statement;
import java.sql.ResultSet;
import javax.naming.*;
import javax.naming.directory.*;
import oracle.jdbc.pool.OracleDataSource;

public class AddUser extends HttpServlet{

public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException,IOException{ response.setContentType("text/html"); PrintWriter out = response.getWriter();

        String LASTNAME = request.getParameter("LASTNAME").toString();
        String FIRSTNAME = request.getParameter("FIRSTNAME").toString();
        String ADDRESS = request.getParameter("ADDRESS").toString();
        String CITY = request.getParameter("CITY").toString();

    Connection con = null;   
            Statement st1 = null;   

            ResultSet rs = null;   

     try {   

             Context initContext = new InitialContext();                     
             Context envContext = (Context) initContext.lookup("java:/comp/env");                     
            OracleDataSource ds = (OracleDataSource) envContext.lookup("jdbc/abc");                      
             if (envContext == null)throw new Exception("Error: No Context");                   
            if (ds == null) throw new Exception("Error: No DataSource");                    
            if (ds != null)                           
             con = ds.getConnection();   

            st1 = con.createStatement();   




            ArrayList al=null;
            ArrayList userList =new ArrayList();
            String query = "insert into LTCINFO.PERSONS set LASTNAME='"+LASTNAME+"',FIRSTNAME='"+FIRSTNAME+"',ADDRESS='"+ADDRESS+"',CITY='"+CITY+"'";


            int i = st1.executeUpdate(query);

            if(i>0)
            {
                response.sendRedirect("SHome");
            }
             rs.close();   
                st1.close(); 
             con.close();   

    } catch (SQLException se) {   
        out.println("An Error Had occurred while accessing the database");   
        out.println("<HR>");   

        out.println(se.getMessage());   
    }   

    catch (Exception e) {   
        e.printStackTrace();   

    } finally {   
        try {   
            if (rs != null)   
                rs.close();   
            if (st1 != null)   
                st1.close();  

            if (con != null)   
                con.close();   
        } catch (Exception e) {   
            out.println(e);   
        }   
    }

} } when i run this code i am getting followinng error "ORA-00926: missing VALUES keyword "