<?php
$con = mysql_connect("localhost","name","pw");
if (!$con)
  {
  die('Could not connect: ' . mysql_error());
  }
 
mysql_select_db("db", $con);
 
mysql_query("UPDATE prefix_downloads SET download_license = 'tekstas'
 
WHERE    download_user  = 'ID'");
 
mysql_close($con);
?>