SQL查询日期列排序问题

Question

我正在编写一个SQL查询，它将返回客户账单付款的数据。

我们将这些付款分为两个不同的表格，一个是“票据”，另一个是“收据”。当我的查询数据按升序显示“收据数据”（来自收据表）。我还有两个日期列显示在结果集中，即“账单月”和“截止日期”（来自账单表）。当我尝试在任何这些提到的列上应用order时，它显示错误的数据。请帮忙。

我的查询附于下方。谢谢。

select distinct
     bil.bill_id as Bill#,  --(bill), this table has bill month and due date column
     rec.receiptid as IDs,  --(receipts),this table has receipt payment date,amount
     sp.spaceno as spaceno,-- (space), this table has property names
     lo.description as locaiton,-- (location),this table has details of property
     one.name as owner_name,-- (owner), this table has owners information
     bt.billtype as Particular,--(billtype),where bill types are saved
     rec.rdate as Date,-- this column of receipt table showing wrong date   data 
     dc.dr as opening,-- (DCnotes), this table has total payable amount column
     rec.amount as dr,-- this column tells the paid amount
     bil.amount as cr,-- this columen tell the payable amount
     bil.balamount as balance,-- this column tells the net total of dr-cr columns
     bil.billmonth as BillMonth,-- bill month column from bill table
     bil.duedate as DueDate -- bill due date column from bill table
from 
    bills bil
inner join 
    Owners one on bil.ownerid = one.ownerid
inner join 
    Receipts rec on bil.spaceid = rec.propertyid
inner join 
    DCnotes dc on bil.spaceid = dc.property
inner join 
    BillTypes bt on bil.billtypeid = bt.billtypeid
inner join  
    Spaces sp on bil.spaceid = sp.spaceid
inner join 
    Locations lo on sp.locationid = lo.locationid
where 
    bil.siteid = '15'

这是SQL查询结果的图像：

这是报告中所需数据的图像：

请检查所需数据和SQL查询结果的附加图像