[belugin]

     Query q=new Query();   
     //while select sum(SalesQty) from SPLJLH
     QueryBuildDataSource ds = q.addDataSource(tableNum(SPLJLH));
;
        //group by ModifDate
     ds.OrderMode(OrderMode::GroupBy);
     ds.addSortField(fieldNum(SPLJLH, ModifDate));
     ds.addSelectionField(fieldNum(SPLJLH, SalesQty), SelectionField::Sum);
        //where SPLJLH.EmplId == it.value()
     ds.addRange(fieldNum(SPLJLH, EmplID)).value(queryValue(it.value()));