Question

这对我来说很难解释，但我尽我所能让你们尽可能轻松。

我有两张桌子。一个存储有关客户tbl_installations的信息。另一个他的互联网账单tbl_bills（这个更重要）。

tbl_installations

 CREATE TABLE [dbo].[tbl_installations](
        [SrNo] [int] IDENTITY(1000,1) NOT NULL,
        [name] [varchar](200) NULL,
        [email] [varchar](100) NULL,
        [phone] [varchar](20) NULL,
        [plandesc] [varchar](50) NULL,
        [plancost] [money] NULL,
        [amtpaid] [money] NULL,
        [amtbalance] [money] NULL,
        [address] [varchar](500) NULL,
        [referencename] [varchar](20) NULL,
        [installationdate] [date] NULL,
        [planduration] [int] NULL,
        [MkrId] [varchar](20) NULL,
        [MkrDt] [datetime] NULL,
        [FromDate] [datetime] NULL,
        [ToDate] [datetime] NULL,
        [ExpiryDate] [datetime] NULL,
        [Status] [varchar](20) NULL,
        [CustomerId] [varchar](20) NULL,
        [ServiceTax] [money] NULL,
        [TotalAmt] [money] NULL
    ) ON [PRIMARY]

tbl_bills

   CREATE TABLE [dbo].[tbl_Bills](
        [Srno] [int] IDENTITY(1,1) NOT NULL,
        [CustomerId] [varchar](20) NULL,
        [PlanDuration] [int] NULL,
        [Amount] [money] NULL,
        [PaidAmt] [money] NULL,
        [discount] [money] NULL,
        [PlanDesc] [varchar](20) NULL,
        [FromDate] [datetime] NULL,
        [ToDate] [datetime] NULL,
        [MkrId] [varchar](20) NULL,
        [MkrDt] [datetime] NULL,
        [ServiceTax] [money] NULL,
        [TotalAmt] [money] NULL,
        [PendingAmt]  AS ([TotalAmt]-([PaidAmt]+[discount])),
        [PaidStatus] [varchar](10) NULL
    ) ON [PRIMARY]

这篇文章会给你我的数据：

     insert into tbl_installations(name,email,phone,plandesc,plancost,amtpaid,amtbalance,address,referencename,installationdate,planduration,MkrId,
     MkrDt,FromDate,ToDate,ExpiryDate,Status,CustomerId,ServiceTax,TotalAmt)
     values('Gulzar','asdasd','3242342',null,null,null,null,'asda asd aada','ref name',GETDATE()-4,1,'arbaaz', GETDATE(),null,null,
     null,'INSTALLED','C2002',null,null )

     insert into tbl_bills (PlanDuration,Amount,PaidAmt,discount,PlanDesc,FromDate,ToDate,PaidStatus,MkrId,MkrDt,ServiceTax,TotalAmt,CustomerId)                      
     values(1,800,600,0,'1MB',GETDATE()-4,DATEADD(month,1, GETDATE()-4),'PAID','Arbaaz',getdate(),800*(12.36/100),800+800*(12.36/100),'C2001')

tbl_bills中的

PendingAmt是一个计算机列，根据totalamt - (paidamt+discount)

计算待处理金额

tbl_bills.Amount是替代费用，例如：800 tbl_bills.TotalAmt是Amount + ServiceTax的总和

方案

第一个月：

客户的承保费用（金额）为800 PaidAmt = 600 ServiceTax = 98.88 TotalAmt = 898.88 PendingAmt = 298.88（计算字段）

第二个月：

客户仍然拥有相同的订阅价值800（总计898.88）但他支付了1100美元，以便他解决了一些未决数额。此1100必须首先解决所有先前的待处理金额（通过更新tbl_bills.paidamt，然后应该将剩下的内容作为一个全新的行插入同一个表中。

这是我失败的尝试：

这是徒步运行

declare @srno as int=0              
declare @Cid as  varchar(20)='C2001'
declare @PlanDuration as int=1         
declare @Amount as money=800             
declare @PlanDesc as varchar(20)='1MB'
declare @FromDate as datetime ='2014-11-11'              
declare @ToDate as datetime='2014-12-11'              
declare @PaidStatus as varchar(20)              
declare @MkrId as varchar(20)='arbaaz'       
declare @status as varchar(20)='PAID'  
declare @Discount as money=0
declare @PaidAmt as money=1100              
--as              
if(@status='INSTALLED')        
BEGIN         
 insert into tbl_bills (PlanDuration,Amount,PaidAmt,discount,PlanDesc,FromDate,ToDate,PaidStatus,MkrId,MkrDt,ServiceTax,TotalAmt,CustomerId)                      
 values(@PlanDuration,@Amount,@paidamt,@discount,@plandesc,@FromDate,@ToDate,'PAID','Arbaaz',getdate(),@Amount*(12.36/100),@Amount+@Amount*(12.36/100),@Cid)                      


 if((select sum(PendingAmt) from tbl_Bills where CustomerId=@cid)=0 )  
 begin  
 update tbl_installations set Status='PAID' ,ExpiryDate=@ToDate where CustomerId=@Cid        
 end  
 else  
 begin  
 update tbl_installations set Status='UNPAID' ,ExpiryDate=@ToDate where CustomerId=@Cid        
 end  
END        
ELSE        
 BEGIN        

   declare @pAmt as money   
 select  @pAmt=sum(PendingAmt) from tbl_Bills where CustomerId=@Cid  

 declare @Amt as money =@Amount  
 select @Amt=@Amt  

 --select  srno from tbl_Bills where CustomerId=@Cid and PendingAmt<>0 order by ToDate  

 if(@pAmt>0)  
 BEGIN------------------------  
 DECLARE @ColExpir datetime  
DECLARE @ColFallprotec datetime  
DECLARE @CurSrno int  
--------------------------------------------------------  
DECLARE @MyCursor CURSOR  
SET @MyCursor = CURSOR FAST_FORWARD  
FOR  
 select  srno from tbl_Bills where CustomerId=@Cid and PendingAmt<>0 order by todate  
OPEN @MyCursor  
FETCH NEXT FROM @MyCursor  
INTO @CurSrno  
WHILE @@FETCH_STATUS = 0  
BEGIN  
IF(@Amt>0)  
BEGIN  
declare @PendingAtCurSrno money   
select @PendingAtCurSrno=pendingamt from tbl_Bills where SrNo=@CurSrno  
print @CurSrno  -----
print @PendingAtCurSrno ----
if(@Amt>@PendingAtCurSrno)  
begin  

update tbl_Bills set PaidAmt=TotalAmt where SrNo=@CurSrno  
select @Amt=@Amt-@PendingAtCurSrno  
print '1st'----
print @amt----
    if(@amt=0)
    begin
    CLOSE @MyCursor  --tried break and return here too
DEALLOCATE @MyCursor  --
    end
end  
else  
begin  
update tbl_Bills set PaidAmt=paidamt+@Amt where SrNo=@CurSrno  
select @Amt=0  
print '2nd'
print @amt----
    if(@amt=0)
    begin
        CLOSE @MyCursor  --tried break and return here too
DEALLOCATE @MyCursor  
    end
end  
END  
END  


FETCH NEXT FROM @MyCursor  
INTO @PendingAtCurSrno  
END  
CLOSE @MyCursor  
DEALLOCATE @MyCursor  
END-------------------------  
if(@Amt>0)  
begin  
 insert into tbl_bills (PlanDuration,Amount,PaidAmt,discount,PlanDesc,FromDate,ToDate,PaidStatus,MkrId,MkrDt,ServiceTax,TotalAmt,CustomerId)                      
 values(@PlanDuration,@Amount,@Amt,@discount,@plandesc,@FromDate,@ToDate,'PAID','Arbaaz',getdate(),@Amount*(12.36/100),@Amount+@Amount*(12.36/100),@Cid)                      
end  

  if((select sum(PendingAmt) from tbl_Bills where CustomerId=@cid)=0 )  
 begin  
 update tbl_installations set Status='PAID' ,ExpiryDate=@ToDate where CustomerId=@Cid        
 end  
 else  
 begin  
 update tbl_installations set Status='UNPAID' ,ExpiryDate=@ToDate where CustomerId=@Cid        
 end

它不仅一直无休止地运行，它不断地一遍又一遍地更新paidamt，并且永远不会到达应该插入剩余金额的另一行。

无法退出Sql游标

0 个答案: