ADOQuery1- Close ADOQuery1- SQL- Clear ADOQuery1- SQL- Add SELECT FROM

ADOQuery1->Close();
ADOQuery1->SQL->Clear();
ADOQuery1->SQL->Add("SELECT * FROM staff WHERE `group` = 1");
ADOQuery1->Open();
int count = ADOQuery1->RecordCount;
ADOQuery1->Close();

if(count > 0)
	{//Показываем окно авторизации
	if(!is_login)
		Form37->ShowModal();
    }