Kapsayıcı <TD>'lere style ekleyeceksin.
Yani toplam 10 adet kayıt dönüyorsa veri tabanından aşağıdaki gibi sıralı olarak z-index atanmalı

<td style="position:relative; z-index:10;"></td>
<td style="position:relative; z-index:9;"></td>
<td style="position:relative; z-index:8;"></td>
<td style="position:relative; z-index:7;"></td>
<td style="position:relative; z-index:6;"></td>
<td style="position:relative; z-index:5;"></td>
<td style="position:relative; z-index:4;"></td>
<td style="position:relative; z-index:3;"></td>
<td style="position:relative; z-index:2;"></td>
<td style="position:relative; z-index:1;"></td>