int SaveData::TotalDrums(String c) { int retval; SQL.ClearError(); try { retval = SQL % Select(SqlSum(DRUMS)) .From(MYTABLE) .Where( MYFIELD == AsString(c) ); } catch(SqlExc) { retval = -1; ErrorOK(t_("Error: ") + SQL.GetLastError()); } return retval; }