Question

我一直致力于为我继承的金融系统撰写报告，而且代码真是一团糟。目前，当前代码执行多个查询并执行过程以构建公共列表，然后将其用作DevExpress网格控件的数据源。在这个应用程序的其他部分工作后，我发现在数据库中执行所有计算要高效得多，因为它们非常基础。检索和操纵数字非常简单，但我现在仍然试图完成报告的最后一个方面：分类帐。

基本上，我需要执行计算，并根据正面或负面的值，在两行（借方或贷方）中的一行中显示这些值。刚刚学习了存储过程，我一直坚持如何做到这一点。我有我的代码和所有声明的变量“设置”但我不知道如何将它们“分配”到行，因为没有这个表，我真的不确定我将如何去做这个

有人能引导我朝正确的方向前进吗？我不是要求有人为我编码，我不知道如何定义我需要做什么来研究方法。

下面是当前的select语句，它输出正确的数字，但都在一行中：

set @OpeningBalance = -3; /**some real calculations here**/


if @OpeningBalance is null
    begin
        set @OpeningBalance = 0
    end;

set @ReserveAmount = 569119.60; /**in place of the real calculations **/

set @ReserveTotal = (@OpeningBalance + @ReserveAmount);

set @ReserveRate =  0.25; /**in place of the select statement calculations **/

set @RequiredReserve = (@ReserveAmount);

set @ReserveRefund = (@ReserveTotal - @RequiredReserve );

set @UnfinancedInvoices = 21026087.59; /**in place of the real calculations **/

set @ReserveBalance = (@RequiredReserve + @UnfinancedInvoices);

SELECT  @OpeningBalance as 'OpeningBalance', 
        @ReserveAmount as 'ReserveAmount', 
        @ReserveTotal as 'ReserveTotal', 
        @ReserveRate as 'ReserveRate', 
        @RequiredReserve as 'RequiredReserve',
        @ReserveRefund as 'ReserveRefund',
        @UnfinancedInvoices as 'UnfinancedInvoices', 
        @ReserveBalance as 'ReserveBalance'
END

使用上面的字段，我需要一个类似于下面模拟的输出：

我更喜欢“0.00”值而不是空格

我想也许我可以为select语句提供一个ID，但我甚至不确定我在SQL中需要做什么（尽管如果不是我会感到惊讶）

请帮助！

Answer 1

您只需在查询中添加一个附加列，为第一行分配一个值，为第二行分配另一个值，然后将其分组：

declare @t table(amt int, cust nvarchar(50));
insert into @t values(1,'c1'),(-5,'c1'),(4,'c1'),(7,'c2'),(-9,'c2');

select cd
      ,Customer
      ,TotalAmount
from(
    select case when amt < 0 then 'c' else 'd' end as cd
          ,cust as Customer
          ,sum(amt) as TotalAmount
    from @t
    group by case when amt < 0 then 'c' else 'd' end
            ,cust
    ) a
order by Customer
        ,cd;

输出：

+----+----------+-------------+
| cd | Customer | TotalAmount |
+----+----------+-------------+
| c  | c1       | -5          |
| d  | c1       | 5           |
| c  | c2       | -9          |
| d  | c2       | 7           |
+----+----------+-------------+

Answer 2

我仍然不确定您要查找的确切格式，但是下面将每个变量的值放入两行之一，基于它是正数还是负数。为清晰起见，我添加了Type列，并假设第一列和最后一列始终显示在两行中。

SELECT  'Credit' as [Type],
    @OpeningBalance as [OpeningBalance], 
    CASE WHEN @ReserveAmount >= 0 THEN @ReserveAmount ELSE 0.00 END as [ReserveAmount], 
    CASE WHEN @ReserveTotal >= 0 THEN @ReserveTotal ELSE 0.00 END as [ReserveTotal], 
    CASE WHEN @ReserveRate >= 0 THEN @ReserveRate ELSE 0.00 END as [ReserveRate], 
    CASE WHEN @RequiredReserve >= 0 THEN @RequiredReserve ELSE 0.00 END as [RequiredReserve],
    CASE WHEN @ReserveRefund>= 0 THEN @ReserveRefund ELSE 0.00 END as [ReserveRefund],
    CASE WHEN @UnfinancedInvoices >= 0 THEN @UnfinancedInvoices ELSE 0.00 END as [UnfinancedInvoices], 
    @ReserveBalance as [ReserveBalance]
UNION ALL
SELECT  'Debit' as [Type],
    @OpeningBalance as [OpeningBalance], 
    CASE WHEN @ReserveAmount <= 0 THEN @ReserveAmount ELSE 0.00 END as [ReserveAmount], 
    CASE WHEN @ReserveTotal <= 0 THEN @ReserveTotal ELSE 0.00 END as [ReserveTotal], 
    CASE WHEN @ReserveRate <= 0 THEN @ReserveRate ELSE 0.00 END as [ReserveRate], 
    CASE WHEN @RequiredReserve <= 0 THEN @RequiredReserve ELSE 0.00 END as [RequiredReserve],
    CASE WHEN @ReserveRefund <= 0 THEN @ReserveRefund ELSE 0.00 END as [ReserveRefund],
    CASE WHEN @UnfinancedInvoices <= 0 THEN @UnfinancedInvoices ELSE 0.00 END as [UnfinancedInvoices], 
    @ReserveBalance as [ReserveBalance]

存储过程计算并返回两行（信用卡/借记卡）

2 个答案: