查询以获取所有未全额支付的发票答案

【问题标题】：query to get all not fully paid invoices查询以获取所有未全额支付的发票
【发布时间】：2021-05-01 05:33:13
【问题描述】：

我有这些表invoices,payments,payments_details，invoices 表有在创建合同时创建的用户应支付的所有发票，该合同可能有 1 个或更多发票，付款表包含合同的所有付款（用户可以为每张发票支付多笔付款），最后一个表payments_details 在payments 表中包含每笔付款的详细信息。付款可能有不同的付款方式，例如现金，或现金和签证，或现金和签证和支票。我通过从 payment_details 获取支付方式值的总和来获取支付值，这是我的表格脚本：

CREATE TABLE [dbo].[invoices](
[ID] [int] IDENTITY(1,1) NOT NULL,
[con_id] [int] NOT NULL,
[value] [decimal](10, 2) NOT NULL,
[due_date] [date] NULL,
[date] [date] NULL,
 CONSTRAINT [PK_due_payments] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, OPTIMIZE_FOR_SEQUENTIAL_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
GO
/****** Object:  Table [dbo].[payments]    Script Date: 30/04/2021 09:45:14 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[payments](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [inv_id] [int] NULL,
    [note] [nvarchar](max) NULL,
    [date] [date] NULL,
    [app_user] [nvarchar](20) NULL,
 CONSTRAINT [PK_invoices] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, OPTIMIZE_FOR_SEQUENTIAL_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO
/****** Object:  Table [dbo].[payments_details]    Script Date: 30/04/2021 09:45:14 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[payments_details](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [pay_id] [int] NOT NULL,
    [value] [decimal](10, 2) NULL,
    [method] [nvarchar](20) NULL,
    [date] [date] NULL,
 CONSTRAINT [PK_Payment_yearly_details] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, OPTIMIZE_FOR_SEQUENTIAL_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
GO

这是数据库的表格图：

我想从`invoices` 获得所有未在`payments` 中全额支付的发票。

这是我在测试中所做的：

select inv.ID,inv.con_id,inv.due_date 
from invoices inv
cross apply(
select inv_id from payments pay) payy
cross apply(
select coalesce(sum(pd.value), 0) as paid
from payments_details pd group by pd.pay_id) pdd
where inv.ID = payy.inv_id and inv.value != pdd.paid  group by inv.ID, inv.con_id,inv.due_date

【问题讨论】：

标签： sql-server tsql

【解决方案1】：

我相信类似下面的内容应该可以满足您的需求。我假设 [invoices] 表中的 [value] 是发票的总金额。

SELECT      [inv].[ID]
          , [inv].[con_id]
          , [inv].[due_date]
FROM        [invoices] [inv]
OUTER APPLY (
                SELECT     SUM([pd].[value]) AS [TotalPayments]
                FROM       [payments] [pay]
                INNER JOIN [payments_details] [pd]
                    ON [pd].[pay_id] = [pay].[ID]
                WHERE      [pay].[inv_id] = [inv].[ID]
            ) AS [paymnts]
WHERE       [inv].[value] <> COALESCE([paymnts].[TotalPayments], 0);

OUTER APPLY 将为您提供发票的所有 payment_details SUM。我们使用 OUTER APPLY 来处理没有付款的发票，然后在 where 子句中使用 COALESCE。

没有样本数据我无法测试。

【讨论】：

【解决方案2】：

试试这个：

SELECT inv.ID, inv.con_id, inv.due_date 
FROM invoices inv
LEFT OUTER JOIN payments pay ON pay.inv_id = inv.ID
LEFT OUTER JOIN payments_details pd ON pd.pay_id = pay.ID
GROUP BY inv.ID, inv.con_id, inv.due_date, inv.value
HAVING SUM(ISNULL(pd.value, 0)) < inv.value

【讨论】：

我想从invoices 获得所有未在payments 中全额支付的发票。

我想从`invoices` 获得所有未在`payments` 中全额支付的发票。