$SQLCommand = <<SQL;
  SELECT Client, Product, License, Issue, Data, Id, Call
  FROM support
  WHERE Client LIKE ?
    AND Product LIKE ?
    AND Issue LIKE ?
    AND Cause LIKE ?
    AND Call LIKE ?
    AND SupportDetails LIKE ?
  SQL

##</code><code>##

  $sth->execute(like_arg(1, $Client, 1),
                ... etc ... );