function execute($query)
{
if (!$this->isConnected()) {
$this->connect($this->database);
}
Connection::startMeasuring($this);
if (func_num_args() > 1) {
$query = call_user_func_array('sprintf', func_get_args());
}
$result = mysql_query($query, $this->connection);
Connection::endMeasuring($this);
if (!$result) {
throw new QueryException(mysql_error($this->connection), mysql_errno($this->connection));
}
return new RecordSet($result);
}