[PHP] can I do this: update table while selecting data from table?

[afan]

Am I allowde to do this:

$query = mysql_query("SELECT member_id, member_name FROM members");
while($result = mysql_fetch_array($query))
{
  if(empty($result['member_name']))
  {
    mysql_query("UPDATE members SET member_name = 'N/A' WHERE member_id =
".$result['member_id']."");
  }
}

As far as I know, after "SELECT" query, data are in buffer and I AM able
to connect to the same table and do UPDATE, right?

Thanks

-afan

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