if /^(([A-Za-z][A-Za-z0-9]*)(\.([A-Za-z][A-Za-z0-9]*))*)(\s|,|=)/
{
  (/\(CONNECT_DATA\s+=\s+\(SID\s+=\s+(\w+\d+?)(\s+)?\)/)
    {  
      $hashref->{$1}="";
    }
}