public void tabloDoldur3() {

    try {
      Statement st = lwn.dbOpen();
      res =
          st.executeQuery(
              "SELECT S.*, B.kitap_no, B.kitap_ad  FROM student S, out_book OB , book B WHERE OB.ogrenci_no = S.ogrenci_no AND OB.kitapno=B.kitap_no");
      while (res.next()) {
        model3.insertRow(
            model3.getRowCount(),
            new Object[] {
              res.getInt("ogrenci_no"),
              res.getString("ogrenci_ad"),
              res.getString("ogrenci_soyad"),
              res.getString("ogrenci_sinif"),
              res.getInt("kitap_no"),
              res.getString("kitap_ad")
            });
      }
      lwn.dbClose();
    } catch (Exception e) {
      JOptionPane.showMessageDialog(null, e.getMessage());
    }
  }