public static void main(String [] args) {


    try {

        Class.forName("oracle.jdbc.driver.OracleDriver");
        Connection con = DriverManager.getConnection("jdbc:oracle:thin:user/pass@host:1522/base");
        Statement stmt = con.createStatement();

    String sql ="Select * from acesso where nrdocumento ='999999999999'";

    ResultSet res = stmt.executeQuery(sql);

    while (res.next()); {
         String hash = res.getString(3);
         System.out.println(hash);


     }

        con.close();
    }

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


}