Как я могу создать кнопку загрузки на нем?

//a table to display file from the database
<thead class="thead-inverse">
<tr>
<th>Description </th>
<th>Category</th>
<th>Upload By</th>
<th>Date</th>
<th></th>
</tr>
<thead>
<tbody class="sc">
<?php
// fetch the records from db
while ($row = mysql_fetch_assoc($result)) {
?>
<tr>
<td><?php echo $row['fdesc']; ?></td> //filename
<td><?php echo $row['category']; ?></td>
<td><?php echo $row['username']; ?></td> //user who have upload the file
<td><?php echo $row['fdatein']; ?></td>
//the download button
<td><a href="" ><button type="button" class="btn btn-unique active" data-toggle="tooltip" data-placement="right" title="Download"><i class="fa fa-download"></i> // get the specific to download
</button></a></td>
</tr>
<?php
}
?>
</tbody>
</table>